$ git clone -n https://src.fedoraproject.org/rpms/lunchbox.git /var/lib/mock/f39-build-1500611-34791/root/chroot_tmpdir/scmroot/lunchbox
Cloning into '/var/lib/mock/f39-build-1500611-34791/root/chroot_tmpdir/scmroot/lunchbox'...
$ git fetch origin 5460c147ac6e9064f5b3ac27c22d74d7a05f7140:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/lunchbox
 * [new ref]         5460c147ac6e9064f5b3ac27c22d74d7a05f7140 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 5460c14 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild