$ git clone -n https://src.fedoraproject.org/rpms/mbpfan.git /var/lib/mock/f39-build-2530653-61806/root/chroot_tmpdir/scmroot/mbpfan
Cloning into '/var/lib/mock/f39-build-2530653-61806/root/chroot_tmpdir/scmroot/mbpfan'...
$ git fetch origin fd5dc5fe3d2fc0a94578cf8a637ffcb0221de18c:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/mbpfan
 * [new ref]         fd5dc5fe3d2fc0a94578cf8a637ffcb0221de18c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at fd5dc5f Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild