$ git clone -n https://src.fedoraproject.org/rpms/gobi_loader.git /var/lib/mock/f45-build-11666-433/root/chroot_tmpdir/scmroot/gobi_loader
Cloning into '/var/lib/mock/f45-build-11666-433/root/chroot_tmpdir/scmroot/gobi_loader'...
$ git fetch origin 804bad6819b2a77c77f106f9171fe61b6d45b8c5:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/gobi_loader
 * [new ref]         804bad6819b2a77c77f106f9171fe61b6d45b8c5 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 804bad6 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild