Wiki macro content cannot be inline edited in the WYSIWYG when the macro is not standalone

Steps to reproduce :

• In a fresh wiki, create a new macro (let's call it myMacro), with the following :
  • Supports inline mode : yes
  • Macro visibility : global
  • Content availability : mandatory
  • Content type : Wiki
  • Macro code :

    {{wikimacrocontent/}}

• Save the page, and test your macro using the WYSIWYG editor, you should be able to insert it fine, and also edit its content inline.
• Update the macro code to :

  ==={{wikimacrocontent/}}===

• Save, re-test, you shouldn't be able to edit the macro inline anymore.