fix: fix removing triggerChar

Author: UziTech

lib/adapters/autocomplete-adapter.ts

@@ -103,7 +103,7 @@ export default class AutocompleteAdapter {
 
     // We must update the replacement prefix as characters are added and removed
     const cache = this._suggestionCache.get(server)!;
-    const replacementPrefix = request.editor.getTextInBufferRange([cache.triggerPoint, request.bufferPosition]);
+    const replacementPrefix = request.editor.getTextInBufferRange([cache.originalBufferPoint, request.bufferPosition]);
     for (const suggestion of suggestions) {
       if (suggestion.customReplacmentPrefix) { // having this property means a custom range was provided
         const len = replacementPrefix.length;