Hi there,
If you undid your changes from the My Changes tab, then it would not require any moderation. But if you made a change by selecting a feature on Map Maker that you had already created, then it will have to go through moderation before the change goes live.
You can expedite the moderation process by leaving a comment under the "Description" tab of the Info window to help a moderator understand what you intend for that feature.
Cheers
Aj