$ git clone -n https://src.fedoraproject.org/rpms/ibsim.git /var/lib/mock/f45-build-14001-456/root/chroot_tmpdir/scmroot/ibsim
Cloning into '/var/lib/mock/f45-build-14001-456/root/chroot_tmpdir/scmroot/ibsim'...
$ git fetch origin 5ec36588c350802662f54ddffcc87dc78241940a:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ibsim
 * [new ref]         5ec36588c350802662f54ddffcc87dc78241940a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 5ec3658 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild