$ git clone -n https://src.fedoraproject.org/rpms/R-whisker.git /var/lib/mock/f39-build-1496964-34580/root/chroot_tmpdir/scmroot/R-whisker
Cloning into '/var/lib/mock/f39-build-1496964-34580/root/chroot_tmpdir/scmroot/R-whisker'...
$ git fetch origin 47530016af316a4df7493363d826769f2c88d83d:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/R-whisker
 * [new ref]         47530016af316a4df7493363d826769f2c88d83d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4753001 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild