In hideWhileExecuting(), don't attempt to show the selection again if an exception occurs. Doing this can sometimes result in another exception occurring due to the selection being in an invalid state, and this masks the original exception.
In hideWhileExecuting(), don't attempt to show the selection again if an exception occurs.
Doing this can sometimes result in another exception occurring due to the selection being
in an invalid state, and this masks the original exception.

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