Steps to reproduce:

• Open a page with WikiEditor
• Click on button link

-> the "Insert link" dialog opens

• Enter in the field "Target page or URL:" the text "constructor"

-> the field "Text to display:" follows the text up to "constructo"
-> In the JavaScript console occurs the error:
Error: Syntax error, unrecognized expression: #wikieditor-toolbar-link-int-target-status-function Object() { [native code] }

Patch: https://gerrit.wikimedia.org/r/130566

Version: master
Severity: minor