$ git clone -n https://src.fedoraproject.org/rpms/yaz.git /var/lib/mock/f45-build-39265-733/root/chroot_tmpdir/scmroot/yaz
Cloning into '/var/lib/mock/f45-build-39265-733/root/chroot_tmpdir/scmroot/yaz'...
$ git fetch origin 67a2d8812ffa95613e071b765d949e6deae0683b:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/yaz
 * [new ref]         67a2d8812ffa95613e071b765d949e6deae0683b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 67a2d88 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild