$ git clone -n https://src.fedoraproject.org/rpms/R-gplots.git /var/lib/mock/f38-build-side-42-init-devel-974343-28922/root/chroot_tmpdir/scmroot/R-gplots
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-974343-28922/root/chroot_tmpdir/scmroot/R-gplots'...
$ git fetch origin 16ceaf4c22ff9636ec3b155cf4c062103ce182d0:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/R-gplots
 * [new ref]         16ceaf4c22ff9636ec3b155cf4c062103ce182d0 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 16ceaf4 Rebuilt for https://fedoraproject.org/wiki/Fedora_38_Mass_Rebuild