$ git clone -n https://src.fedoraproject.org/rpms/patchelf.git /var/lib/mock/f45-build-21434-584/root/chroot_tmpdir/scmroot/patchelf
Cloning into '/var/lib/mock/f45-build-21434-584/root/chroot_tmpdir/scmroot/patchelf'...
$ git fetch origin 1cbe7c8b311e8defadad4f4a5988fc204442104a:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/patchelf
 * [new ref]         1cbe7c8b311e8defadad4f4a5988fc204442104a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 1cbe7c8 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild