$ git clone -n https://src.fedoraproject.org/rpms/lumina-desktop.git /var/lib/mock/f39-build-1462795-33365/root/chroot_tmpdir/scmroot/lumina-desktop
Cloning into '/var/lib/mock/f39-build-1462795-33365/root/chroot_tmpdir/scmroot/lumina-desktop'...
$ git fetch origin 306c7a92f7c4c17cfcb456f8819374aade5be35d:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/lumina-desktop
 * [new ref]         306c7a92f7c4c17cfcb456f8819374aade5be35d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 306c7a9 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild