Set completion range for invalid token

actions-languageservice/src/complete.ts

@@ -103,6 +103,13 @@ export async function complete(
   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 } as Position, position);
+  }
 
   return values.map(value => {
     const newText = value.insertText || value.label;