$ git clone -n https://src.fedoraproject.org/rpms/riemann-c-client.git /var/lib/mock/f39-build-1523224-35990/root/chroot_tmpdir/scmroot/riemann-c-client
Cloning into '/var/lib/mock/f39-build-1523224-35990/root/chroot_tmpdir/scmroot/riemann-c-client'...
$ git fetch origin a8e22d15a74618d281d275710e393886c0854e83:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/riemann-c-client
 * [new ref]         a8e22d15a74618d281d275710e393886c0854e83 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a8e22d1 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild