diff --git a/.github/source/index.js.mjs b/.github/source/index.js.mjs
index f3774c4..f450d81 100644
--- a/.github/source/index.js.mjs
+++ b/.github/source/index.js.mjs
@@ -22,15 +22,17 @@ const KEY_TAB = 'Tab';
 
 function TP(source, state = {}) {
 
-    if (!source) return;
+    const $ = this;
+
+    if (!source) {
+        return $;
+    }
 
     // Already instantiated, skip!
     if (source[name]) {
         return source[name];
     }
 
-    const $ = this;
-
     // Return new instance if `TP` was called without the `new` operator
     if (!isInstance($, TP)) {
         return new TP(source, state);
diff --git a/README.md b/README.md
index 4996a0d..a800003 100644
--- a/README.md
+++ b/README.md
@@ -24,7 +24,7 @@ Contribute
 Release Notes
 -------------
 
-### 3.4.6
+### 3.4.7
 
  - Added CSS variables for easy integration with third-party applications.
  - Fixed focus trap in read-only tag picker (#20).
diff --git a/index.html b/index.html
index 59cc219..6f963ce 100644
--- a/index.html
+++ b/index.html
@@ -5,7 +5,7 @@
     <meta content="#000" name="theme-color">
     <meta content="width=device-width" name="viewport">
     <meta content="Better tags input interaction with JavaScript." name="description">
-    <title>Tag Picker 3.4.6</title>
+    <title>Tag Picker 3.4.7</title>
     <link href="index.min.css" rel="stylesheet">
     <style>
       * {
@@ -76,7 +76,7 @@
   <body>
     <p>Do you like this project? Please support my <a href="https://github.com/mecha-cms">Mecha CMS</a> project too. Thank you!</p>
     <header>
-      <h1>Tag Picker 3.4.6</h1>
+      <h1>Tag Picker 3.4.7</h1>
       <p>Tag Picker is a simple JavaScript application that aims to provide better experience for users in adding and removing comma-separated list of words.</p>
       <hr>
     </header>
diff --git a/index.js b/index.js
index 62f46c6..aafa379 100644
--- a/index.js
+++ b/index.js
@@ -439,11 +439,13 @@
     const KEY_TAB = 'Tab';
 
     function TP(source, state = {}) {
-        if (!source) return; // Already instantiated, skip!
+        const $ = this;
+        if (!source) {
+            return $;
+        } // Already instantiated, skip!
         if (source[name]) {
             return source[name];
-        }
-        const $ = this; // Return new instance if `TP` was called without the `new` operator
+        } // Return new instance if `TP` was called without the `new` operator
         if (!isInstance($, TP)) {
             return new TP(source, state);
         }
@@ -1150,6 +1152,6 @@
         'min': 0,
         'pattern': null
     };
-    TP.version = '3.4.6';
+    TP.version = '3.4.7';
     return TP;
 });
\ No newline at end of file
diff --git a/index.min.js b/index.min.js
index 655034e..66b38a8 100644
--- a/index.min.js
+++ b/index.min.js
@@ -23,4 +23,4 @@
  * SOFTWARE.
  *
  */
-!function(t,n){"object"==typeof exports&&"undefined"!=typeof module?module.exports=n():"function"==typeof define&&define.amd?define(n):(t="undefined"!=typeof globalThis?globalThis:t||self).TP=n()}(this,(function(){"use strict";var t=function(t,n){return-1!==n.indexOf(t)},n=function(t){return Array.isArray(t)},e=function(t,n){return t&&i(n)&&t instanceof n},r=function(t){return"number"==typeof t},u=function(t,n){return void 0===n&&(n=!0),"object"==typeof t&&(!n||e(t,Object))},i=function(t){return function(t){return void 0!==t}(t)&&!function(t){return null===t}(t)},o=function(t){return"string"==typeof t},f=function(t,n){var e=n.indexOf(t);return-1!==e?e:null},c=function(t){return t.toLowerCase()},s=function(t){return t.length},a=function(t){return Object.keys(t)},l=function t(e){if(n(e))return e.map((function(n){return t(n)}));if(function(t){return/^-?(?:\d*.)?\d+$/.test(t+"")}(e))return function(t,n){return void 0===n&&(n=10),n?parseInt(t,n):parseFloat(t)}(e);if(u(e)){for(var r in 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",max:9999,min:0,pattern:null},W.version="3.4.6",W}));
\ No newline at end of file
+!function(t,n){"object"==typeof exports&&"undefined"!=typeof module?module.exports=n():"function"==typeof define&&define.amd?define(n):(t="undefined"!=typeof globalThis?globalThis:t||self).TP=n()}(this,(function(){"use strict";var t=function(t,n){return-1!==n.indexOf(t)},n=function(t){return Array.isArray(t)},e=function(t,n){return t&&i(n)&&t instanceof n},r=function(t){return"number"==typeof t},u=function(t,n){return void 0===n&&(n=!0),"object"==typeof t&&(!n||e(t,Object))},i=function(t){return function(t){return void 0!==t}(t)&&!function(t){return null===t}(t)},o=function(t){return"string"==typeof t},f=function(t,n){var e=n.indexOf(t);return-1!==e?e:null},c=function(t){return t.toLowerCase()},s=function(t){return t.length},a=function(t){return Object.keys(t)},l=function t(e){if(n(e))return e.map((function(n){return t(n)}));if(function(t){return/^-?(?:\d*.)?\d+$/.test(t+"")}(e))return function(t,n){return void 0===n&&(n=10),n?parseInt(t,n):parseFloat(t)}(e);if(u(e)){for(var r in 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a-z\d-]/g,"").trim(),d.focus=()=>(L()||jt(E(st),1),d),d.get=t=>L()?null:pt(t,1),d.input=st,d.let=t=>{if(!L()&&!A()){let e=l.min;if(t)if(n(t))t.forEach((t=>{if(e>0&&s(d.tags)<e)return X("min.tags",[e]),d;xt(t),yt(t)}));else{if(e>0&&s(d.tags)<e)return X("min.tags",[e]),d;xt(t),yt(t)}else ht("")}return d},d.pop=()=>{if(!u.TP)return d;delete u.TP;let t=d.tags;return P(u,rt+"source"),F("blur",ot,Ht),F("click",ot,Kt),F("focus",u,zt),F("keydown",ot,Ft),F("keydown",st,It),F("keyup",ot,Mt),F("paste",st,$t),M(["blur","focus"],ot,St),M(["blur","focus"],ct,Ct),M(["blur","focus"],st,Ot),M(["copy","cut","paste"],ct,Dt),it&&F("submit",it,qt),t.forEach(xt),_(u,{tabindex:O}),N(ot),X("pop",[t])},d.self=ot,d.set=(t,e)=>{if(!t)return d;if(!L()&&!A())if(n(t))ht(t.join(l.join));else{let n=d.tags,r=l.max;pt(t)?X("has.tag",[t,f(t,n)]):s(n)<r?(bt(t,e),mt(t,e)):X("max.tags",[r])}return d},d.source=d.output=u,d.state=l,d.tags=[],ht(u.value),d}return W.instances={},W.state={class:"tag-picker",escape:[","],join:", ",max:9999,min:0,pattern:null},W.version="3.4.7",W}));
\ No newline at end of file
diff --git a/index.mjs b/index.mjs
index 6c2fd9a..8568c5f 100644
--- a/index.mjs
+++ b/index.mjs
@@ -22,15 +22,17 @@ const KEY_TAB = 'Tab';
 
 function TP(source, state = {}) {
 
-    if (!source) return;
+    const $ = this;
+
+    if (!source) {
+        return $;
+    }
 
     // Already instantiated, skip!
     if (source[name]) {
         return source[name];
     }
 
-    const $ = this;
-
     // Return new instance if `TP` was called without the `new` operator
     if (!isInstance($, TP)) {
         return new TP(source, state);
@@ -793,6 +795,6 @@ TP.state = {
     'pattern': null
 };
 
-TP.version = '3.4.6';
+TP.version = '3.4.7';
 
 export default TP;
\ No newline at end of file
diff --git a/package.json b/package.json
index 7ab3a5b..0bb96e3 100644
--- a/package.json
+++ b/package.json
@@ -49,5 +49,5 @@
     "pack": "pack --clean=false --from=.github/source --js-format=umd --js-name=TP --js-top='%(js.license)' --mjs=true --scss=true --to=."
   },
   "type": "module",
-  "version": "3.4.6"
+  "version": "3.4.7"
 }
\ No newline at end of file
