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How do I reset the "Firefox is being updated by another instance" message?

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I was attempting to update Nightly via the "About Nightly" window. I got a message about a failed upgrade and a link to download a fresh copy of Nightly, so I did. I closed Nightly and overwrote my existing copy with the fresh download and reopened.

Ever since then, the "About Nightly" window has a message "Nightly is being updated by another instance" and won't look for updates. Is there any way to reset whatever is tracking this to force my new Nightly instance to update again? I've tried restarting in Safe Mode and I don't use antivirus, so I'm pretty sure this has something to do with overwriting my copy of Nightly before it could mark its update attempt as finished.

I was attempting to update Nightly via the "About Nightly" window. I got a message about a failed upgrade and a link to download a fresh copy of Nightly, so I did. I closed Nightly and overwrote my existing copy with the fresh download and reopened. Ever since then, the "About Nightly" window has a message "Nightly is being updated by another instance" and won't look for updates. Is there any way to reset whatever is tracking this to force my new Nightly instance to update again? I've tried restarting in Safe Mode and I don't use antivirus, so I'm pretty sure this has something to do with overwriting my copy of Nightly before it could mark its update attempt as finished.

Chosen solution

This was a regression. A fix was committed today. Please see the following bug for more information: https://bugzilla.mozilla.org/show_bug.cgi?id=1068384

It has nothing to do with overwriting your existing instance of Nightly. Pure coincidence.

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This was a regression. A fix was committed today. Please see the following bug for more information: https://bugzilla.mozilla.org/show_bug.cgi?id=1068384

It has nothing to do with overwriting your existing instance of Nightly. Pure coincidence.

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You can always follow the Nightly threads in Firefox Builds at mozillaZine forums, a place where many Testers hang out. http://forums.mozillazine.org/viewforum.php?f=23

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A regression it was! The problem righted itself with last night's Nightly. I was worried it wouldn't update at all. Thanks for the help!