On gcc builds with opt=on and dbg=on (x86, but haven't tried others) such as buildvariant "! Linux x86 Shared Library DEBUG", if I place a `uasserted` in this function which is part of a command execution, the DBException is left uncaught and crashes the server, even though there's a handler for it.

The same does not reproduce on clang builds, nor on gcc builds with "opt=on dbg=off" or "opt=off dbg=on".