How do you clear share actions bound to ‘copy to clipboard’? I accidentally set a sharing intent to always copy to clipboard. I know that usually to unbind these defaults, you go Settings > Apps > All > [bound app] and hit the 'Clear defaults' button from there, but I've had a look at all the system- or text-related things in there and I can't find anything with such a default set.

In my googling, I found this thread on XDA Developers that describes exactly this problem, but it has no responses.

If it matters, the action in question is the one the Github app uses to share issues.
There are multiple ways to clear "default actions":


Walking through the list of apps in Settings&rarr;Apps&rarr;Manage Apps, looking at each entry whether it has a "Clear defaults" button, and hit that (not very user-friendly -- and in this special case obviously not applyable, as the action seems not bound to a special app)
Using a helper app like e.g. Default App Manager or DefaultApp Reset (much more user-friendly -- but not suitable in this case, for the same reason as the previous point)
Installing another app which uses the same intent (in case of a "homescreen launcher" and the "home" key, another launcher, to give an example) -- not always easy to figure out what app might be fitting for this purpose. This is what lead to success in our case here, by installing Andmade Share
Note: You do not need to keep that app installed. It's the installation of the app which "drops" the default. This is also the purpose why the next item works:
Updating/uninstalling one of the apps currently using this intent (to take above example: that's why you will be asked again when your launcher received an update) -- this point just for completeness :)