$ git clone -n https://src.fedoraproject.org/rpms/osu-micro-benchmarks.git /var/lib/mock/f45-build-21230-581/root/chroot_tmpdir/scmroot/osu-micro-benchmarks
Cloning into '/var/lib/mock/f45-build-21230-581/root/chroot_tmpdir/scmroot/osu-micro-benchmarks'...
$ git fetch origin 48e8fc85d8dd8ebb6c5f13bafc427293c8e24387:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/osu-micro-benchmarks
 * [new ref]         48e8fc85d8dd8ebb6c5f13bafc427293c8e24387 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 48e8fc8 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild