Use parent token (revertable)

actions-languageservice/src/complete.ts

@@ -102,12 +102,8 @@ export async function complete(
   let replaceRange: Range | undefined;
   if (token?.range) {
     replaceRange = mapRange(token.range);
-  } else if (!token) {
-    // Not a valid token, create a range from the current position
-    const line = newDoc.getText({start: {line: position.line, character: 0}, end: position});
-    // Get the length of the current word
-    const val = line.match(/[\w_-]*$/)?.[0].length || 0;
-    replaceRange = Range.create({line: position.line, character: position.character - val}, position);
+  } else if (!token && parent?.range) {
+    replaceRange = mapRange(parent.range)
   }
 
   return values.map(value => {