diff --git a/vendor/codemirror/README.md b/vendor/codemirror/README.md
index 8ae3424d..4a1b2c57 100644
--- a/vendor/codemirror/README.md
+++ b/vendor/codemirror/README.md
@@ -1,4 +1,4 @@
-## CodeMirror v5.39.0
+## CodeMirror v5.39.2
 
 List of essential folders & files copied from `node_modules/codemirror` to `vendor/codemirror`:
 
diff --git a/vendor/codemirror/addon/hint/show-hint.js b/vendor/codemirror/addon/hint/show-hint.js
index dae450db..26dc0f00 100644
--- a/vendor/codemirror/addon/hint/show-hint.js
+++ b/vendor/codemirror/addon/hint/show-hint.js
@@ -98,7 +98,7 @@
       var pos = this.cm.getCursor(), line = this.cm.getLine(pos.line);
       if (pos.line != this.startPos.line || line.length - pos.ch != this.startLen - this.startPos.ch ||
           pos.ch < this.startPos.ch || this.cm.somethingSelected() ||
-          (pos.ch && this.options.closeCharacters.test(line.charAt(pos.ch - 1)))) {
+          (!pos.ch || this.options.closeCharacters.test(line.charAt(pos.ch - 1)))) {
         this.close();
       } else {
         var self = this;
@@ -200,7 +200,8 @@
     var widget = this, cm = completion.cm;
 
     var hints = this.hints = document.createElement("ul");
-    hints.className = "CodeMirror-hints";
+    var theme = completion.cm.options.theme;
+    hints.className = "CodeMirror-hints " + theme;
     this.selectedHint = data.selectedHint || 0;
 
     var completions = data.list;
diff --git a/vendor/codemirror/lib/codemirror.js b/vendor/codemirror/lib/codemirror.js
index 1a0656a1..85d16f1c 100644
--- a/vendor/codemirror/lib/codemirror.js
+++ b/vendor/codemirror/lib/codemirror.js
@@ -5707,7 +5707,7 @@ LineWidget.prototype.changed = function () {
   this.height = null;
   var diff = widgetHeight(this) - oldH;
   if (!diff) { return }
-  updateLineHeight(line, line.height + diff);
+  if (!lineIsHidden(this.doc, line)) { updateLineHeight(line, line.height + diff); }
   if (cm) {
     runInOp(cm, function () {
       cm.curOp.forceUpdate = true;
@@ -6634,7 +6634,7 @@ keyMap.pcDefault = {
   "Ctrl-G": "findNext", "Shift-Ctrl-G": "findPrev", "Shift-Ctrl-F": "replace", "Shift-Ctrl-R": "replaceAll",
   "Ctrl-[": "indentLess", "Ctrl-]": "indentMore",
   "Ctrl-U": "undoSelection", "Shift-Ctrl-U": "redoSelection", "Alt-U": "redoSelection",
-  fallthrough: "basic"
+  "fallthrough": "basic"
 };
 // Very basic readline/emacs-style bindings, which are standard on Mac.
 keyMap.emacsy = {
@@ -6652,7 +6652,7 @@ keyMap.macDefault = {
   "Cmd-G": "findNext", "Shift-Cmd-G": "findPrev", "Cmd-Alt-F": "replace", "Shift-Cmd-Alt-F": "replaceAll",
   "Cmd-[": "indentLess", "Cmd-]": "indentMore", "Cmd-Backspace": "delWrappedLineLeft", "Cmd-Delete": "delWrappedLineRight",
   "Cmd-U": "undoSelection", "Shift-Cmd-U": "redoSelection", "Ctrl-Up": "goDocStart", "Ctrl-Down": "goDocEnd",
-  fallthrough: ["basic", "emacsy"]
+  "fallthrough": ["basic", "emacsy"]
 };
 keyMap["default"] = mac ? keyMap.macDefault : keyMap.pcDefault;
 
@@ -7785,6 +7785,7 @@ function CodeMirror$1(place, options) {
 
   var doc = options.value;
   if (typeof doc == "string") { doc = new Doc(doc, options.mode, null, options.lineSeparator, options.direction); }
+  else if (options.mode) { doc.modeOption = options.mode; }
   this.doc = doc;
 
   var input = new CodeMirror$1.inputStyles[options.inputStyle](this);
@@ -9688,7 +9689,7 @@ CodeMirror$1.fromTextArea = fromTextArea;
 
 addLegacyProps(CodeMirror$1);
 
-CodeMirror$1.version = "5.39.0";
+CodeMirror$1.version = "5.39.2";
 
 return CodeMirror$1;
 
diff --git a/vendor/codemirror/theme/darcula.css b/vendor/codemirror/theme/darcula.css
index 7240d39b..66729e9d 100644
--- a/vendor/codemirror/theme/darcula.css
+++ b/vendor/codemirror/theme/darcula.css
@@ -32,15 +32,15 @@
 
 .cm-s-darcula span.cm-builtin { color: #A9B7C6; }
 .cm-s-darcula  { font-family: Consolas, Menlo, Monaco, Lucida Console, Liberation Mono, DejaVu Sans Mono, Bitstream Vera Sans Mono, Courier New, monospace, serif;}
-.cm-s-darcula .CodeMirror-matchingbracket { outline:1px solid #A9B7C6; color: yellow !important; }
+.cm-s-darcula .CodeMirror-matchingbracket { background-color: #3b514d; color: yellow !important; }
 
-.CodeMirror-hints {
+.CodeMirror-hints.darcula {
   font-family: Menlo, Monaco, Consolas, 'Courier New', monospace;
   color: #9c9e9e;
   background-color: #3b3e3f !important;
 }
 
-.CodeMirror-hint-active {
+.CodeMirror-hints.darcula .CodeMirror-hint-active {
   background-color: #494d4e !important;
   color: #9c9e9e !important;
 }
diff --git a/vendor/codemirror/theme/idea.css b/vendor/codemirror/theme/idea.css
index 5cdb883e..eab36717 100644
--- a/vendor/codemirror/theme/idea.css
+++ b/vendor/codemirror/theme/idea.css
@@ -30,13 +30,13 @@
 
 .cm-s-idea .CodeMirror-matchingbracket { outline:1px solid grey; color:black !important; }
 
-.CodeMirror-hints {
+.CodeMirror-hints.idea {
   font-family: Menlo, Monaco, Consolas, 'Courier New', monospace;
   color: #616569;
   background-color: #ebf3fd !important;
 }
 
-.CodeMirror-hint-active {
+.CodeMirror-hints.idea .CodeMirror-hint-active {
   background-color: #a2b8c9 !important;
   color: #5c6065 !important;
 }
\ No newline at end of file