$ git clone -n https://src.fedoraproject.org/rpms/R-tinytex.git /var/lib/mock/f40-build-2033415-47799/root/chroot_tmpdir/scmroot/R-tinytex
Cloning into '/var/lib/mock/f40-build-2033415-47799/root/chroot_tmpdir/scmroot/R-tinytex'...
$ git fetch origin 7ff34b4f8806b9ddbe02cdd05a7dde973056d320:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/R-tinytex
 * [new ref]         7ff34b4f8806b9ddbe02cdd05a7dde973056d320 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7ff34b4 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild