$ git clone -n https://src.fedoraproject.org/rpms/c2esp.git /var/lib/mock/f45-build-5509-340/root/chroot_tmpdir/scmroot/c2esp
Cloning into '/var/lib/mock/f45-build-5509-340/root/chroot_tmpdir/scmroot/c2esp'...
$ git fetch origin 60e7ff82d126f89527fc7b3b320e5e7cbde8a051:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/c2esp
 * [new ref]         60e7ff82d126f89527fc7b3b320e5e7cbde8a051 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 60e7ff8 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild