$ git clone -n https://src.fedoraproject.org/rpms/R-BiocFileCache /var/lib/mock/f39-build-1582132-38104/root/chroot_tmpdir/scmroot/R-BiocFileCache
Cloning into '/var/lib/mock/f39-build-1582132-38104/root/chroot_tmpdir/scmroot/R-BiocFileCache'...
$ git fetch origin 8226df09c0b44e6e626801ec8aaed270970e7f19:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/R-BiocFileCache
 * [new ref]         8226df09c0b44e6e626801ec8aaed270970e7f19 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8226df0 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild