$ git clone -n https://src.fedoraproject.org/rpms/pkcs11test.git /var/lib/mock/f45-build-28575-631/root/chroot_tmpdir/scmroot/pkcs11test
Cloning into '/var/lib/mock/f45-build-28575-631/root/chroot_tmpdir/scmroot/pkcs11test'...
$ git fetch origin a8f89ae0d7766d376485487111543dbb6b4b4419:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/pkcs11test
 * [new ref]         a8f89ae0d7766d376485487111543dbb6b4b4419 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a8f89ae Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild