The button to toggle the Source mode is enabled while the content is being reloaded after a macro is inserted or updated

You can see this by:

• editing a wiki page with the WYSIWYG editor
• open the macro modal to insert / edit a macro (but don't submit the modal yet)
• enable Throttling from the Network tab of the browser's developer tools
• submit the macro modal

Expected: the Source button should be disabled while the content is being reloaded, like the rest of the toolbar buttons.

Actual: the Source button is enabled and if you click on it, you may end up with HTML in the Source area instead of wiki syntax.