$ git clone -n https://src.fedoraproject.org/rpms/wmx.git /var/lib/mock/f41-build-726056-13125/root/chroot_tmpdir/scmroot/wmx
Cloning into '/var/lib/mock/f41-build-726056-13125/root/chroot_tmpdir/scmroot/wmx'...
$ git fetch origin 4b7f42eb2a008dea0b6ca5aeafcc35c6249b723c:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/wmx
 * [new ref]         4b7f42eb2a008dea0b6ca5aeafcc35c6249b723c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4b7f42e Eliminate use of obsolete %patchN syntax (#2283636)