$ git clone -n https://src.fedoraproject.org/rpms/R-presser.git /var/lib/mock/f38-build-side-42-init-devel-1000261-29273/root/chroot_tmpdir/scmroot/R-presser
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-1000261-29273/root/chroot_tmpdir/scmroot/R-presser'...
$ git fetch origin c8194bf8590a2ce98a189220d2b043658e38301f:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/R-presser
 * [new ref]         c8194bf8590a2ce98a189220d2b043658e38301f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c8194bf Rebuilt for https://fedoraproject.org/wiki/Fedora_38_Mass_Rebuild