$ git clone -n https://src.fedoraproject.org/rpms/gap-pkg-guava.git /var/lib/mock/f38-build-side-42-init-devel-806600-28207/root/chroot_tmpdir/scmroot/gap-pkg-guava
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-806600-28207/root/chroot_tmpdir/scmroot/gap-pkg-guava'...
$ git fetch origin 7133abf46fee73cddafcacc85f1066c5f64b79e0:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/gap-pkg-guava
 * [new ref]         7133abf46fee73cddafcacc85f1066c5f64b79e0 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7133abf Rebuilt for https://fedoraproject.org/wiki/Fedora_38_Mass_Rebuild