$ git clone -n https://src.fedoraproject.org/rpms/gitweb-caching.git /var/lib/mock/f45-build-11124-427/root/chroot_tmpdir/scmroot/gitweb-caching
Cloning into '/var/lib/mock/f45-build-11124-427/root/chroot_tmpdir/scmroot/gitweb-caching'...
$ git fetch origin 22c64191bcad9379534f68a11d26bd1749b4d7ce:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/gitweb-caching
 * [new ref]         22c64191bcad9379534f68a11d26bd1749b4d7ce -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 22c6419 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild