$ git clone -n https://src.fedoraproject.org/rpms/gshutdown.git /var/lib/mock/f41-build-757243-13423/root/chroot_tmpdir/scmroot/gshutdown
Cloning into '/var/lib/mock/f41-build-757243-13423/root/chroot_tmpdir/scmroot/gshutdown'...
$ git fetch origin 0017c7e6505d794b74df6d873f759b7779cc3b62:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/gshutdown
 * [new ref]         0017c7e6505d794b74df6d873f759b7779cc3b62 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 0017c7e Eliminate use of obsolete %patchN syntax (#2283636)