Fix implementation of silent commands #2245
Merged
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If a command runs, it should clear existing error messages, as described in #1807 (comment). However, the clearing is currently done after the command runs, which means if the command displays some kind of message then it will be wiped out.
For example:
This PR changes the behavior so that clearing is done before the command is actually run, so that any messages written as a result of running the command will be displayed.
Note that some commands run silently in the background and shouldn't clear messages in the UI (e.g. hook commands or commands that are generated internally).