$ git clone -n https://src.fedoraproject.org/rpms/R-lobstr.git /var/lib/mock/f40-build-2285349-55675/root/chroot_tmpdir/scmroot/R-lobstr
Cloning into '/var/lib/mock/f40-build-2285349-55675/root/chroot_tmpdir/scmroot/R-lobstr'...
$ git fetch origin 82e271c7f6200f4575043cd1e84526d7d29c8933:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/R-lobstr
 * [new ref]         82e271c7f6200f4575043cd1e84526d7d29c8933 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 82e271c Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild