$ git clone -n https://src.fedoraproject.org/rpms/R-lobstr.git /var/lib/mock/f40-build-789481-135730/root/chroot_tmpdir/scmroot/R-lobstr
Cloning into '/var/lib/mock/f40-build-789481-135730/root/chroot_tmpdir/scmroot/R-lobstr'...
$ git fetch origin 25416059faf1eaf188e89d40c42b683e306a8bcb:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/R-lobstr
 * [new ref]         25416059faf1eaf188e89d40c42b683e306a8bcb -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 2541605 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild