$ git clone -n https://src.fedoraproject.org/rpms/rust-prometheus-client.git /var/lib/mock/f45-build-44046-810/root/chroot_tmpdir/scmroot/rust-prometheus-client
Cloning into '/var/lib/mock/f45-build-44046-810/root/chroot_tmpdir/scmroot/rust-prometheus-client'...
$ git fetch origin 10f9b52caa67c5d6b6503c3b94ccb3da48176450:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-prometheus-client
 * [new ref]         10f9b52caa67c5d6b6503c3b94ccb3da48176450 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 10f9b52 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild