$ git clone -n https://src.fedoraproject.org/rpms/evtest.git /var/lib/mock/f45-build-8524-390/root/chroot_tmpdir/scmroot/evtest
Cloning into '/var/lib/mock/f45-build-8524-390/root/chroot_tmpdir/scmroot/evtest'...
$ git fetch origin 8f072fd84916da86462bb16a5e7ecbc8c810d86a:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/evtest
 * [new ref]         8f072fd84916da86462bb16a5e7ecbc8c810d86a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8f072fd Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild