add additional checks for hiding autocomplete to prevent text calcu…

…lation

Signed-off-by: Michael Telatynski <7t3chguy@gmail.com>

src/components/views/rooms/MessageComposerInput.js

@@ -498,10 +498,12 @@ export default class MessageComposerInput extends React.Component {
             }
         }
 
-        // when selection changes hide the autocomplete.
+        // when in autocomplete mode and selection changes hide the autocomplete.
         // Selection changes when we enter text so use a heuristic to compare documents without doing it recursively
-        const documentChanged = this.state.editorState.document.text !== editorState.document.text;
-        if (!documentChanged && !rangeEquals(this.state.editorState.selection, editorState.selection)) {
+        if (this.autocomplete.state.completionList.length >= 0 && !this.autocomplete.state.hide &&
+            this.state.editorState.document.text !== editorState.document.text &&
+            !rangeEquals(this.state.editorState.selection, editorState.selection))
+        {
             this.autocomplete.hide();
         }