$ git clone -n https://src.fedoraproject.org/rpms/crash.git /var/lib/mock/f41-build-832232-14881/root/chroot_tmpdir/scmroot/crash
Cloning into '/var/lib/mock/f41-build-832232-14881/root/chroot_tmpdir/scmroot/crash'...
$ git fetch origin 1e472d96a8002a1b8dd19131ac75d3a8b54b73d1:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/crash
 * [new ref]         1e472d96a8002a1b8dd19131ac75d3a8b54b73d1 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 1e472d9 Update to the latest commit <3879e9104826>