$ git clone -n https://src.fedoraproject.org/rpms/R-BiocFileCache.git /var/lib/mock/f41-build-side-1-3142737-40009/root/chroot_tmpdir/scmroot/R-BiocFileCache
Cloning into '/var/lib/mock/f41-build-side-1-3142737-40009/root/chroot_tmpdir/scmroot/R-BiocFileCache'...
$ git fetch origin e43a4243ac860d1d71b24edbab44a090eff78b8a:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/R-BiocFileCache
 * [new ref]         e43a4243ac860d1d71b24edbab44a090eff78b8a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e43a424 Rebuilt for https://fedoraproject.org/wiki/Fedora_41_Mass_Rebuild