$ git clone -n https://src.fedoraproject.org/rpms/R-chron.git /var/lib/mock/f41-build-821926-152652/root/chroot_tmpdir/scmroot/R-chron
Cloning into '/var/lib/mock/f41-build-821926-152652/root/chroot_tmpdir/scmroot/R-chron'...
$ git fetch origin 6789e4c5743c6d0c69a82306c9643d7765990524:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/R-chron
 * [new ref]         6789e4c5743c6d0c69a82306c9643d7765990524 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6789e4c Rebuilt for https://fedoraproject.org/wiki/Fedora_41_Mass_Rebuild