$ git clone -n https://src.fedoraproject.org/rpms/R-arules.git /var/lib/mock/f39-build-1535787-36250/root/chroot_tmpdir/scmroot/R-arules
Cloning into '/var/lib/mock/f39-build-1535787-36250/root/chroot_tmpdir/scmroot/R-arules'...
$ git fetch origin f6d8f6b2a60195a94b4fce25ff020ab58fc02b25:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/R-arules
 * [new ref]         f6d8f6b2a60195a94b4fce25ff020ab58fc02b25 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f6d8f6b Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild