$ git clone -n https://src.fedoraproject.org/rpms/scponly.git /var/lib/mock/f39-build-1492169-34526/root/chroot_tmpdir/scmroot/scponly
Cloning into '/var/lib/mock/f39-build-1492169-34526/root/chroot_tmpdir/scmroot/scponly'...
$ git fetch origin 6b4a230e4720374a1a108805cecf503c1c0f71e1:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/scponly
 * [new ref]         6b4a230e4720374a1a108805cecf503c1c0f71e1 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6b4a230 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild