$ git clone -n https://src.fedoraproject.org/rpms/wemux.git /var/lib/mock/f41-build-726021-13125/root/chroot_tmpdir/scmroot/wemux
Cloning into '/var/lib/mock/f41-build-726021-13125/root/chroot_tmpdir/scmroot/wemux'...
$ git fetch origin a974b9a5f97a9295d6e6402a3a5d7e62088f2433:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/wemux
 * [new ref]         a974b9a5f97a9295d6e6402a3a5d7e62088f2433 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a974b9a Eliminate use of obsolete %patchN syntax (#2283636)