$ git clone -n https://src.fedoraproject.org/rpms/gap-pkg-semigroups.git /var/lib/mock/f39-build-2258647-54350/root/chroot_tmpdir/scmroot/gap-pkg-semigroups
Cloning into '/var/lib/mock/f39-build-2258647-54350/root/chroot_tmpdir/scmroot/gap-pkg-semigroups'...
$ git fetch origin 2492224a8237002a2a8545a1af63c9e0420452d1:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/gap-pkg-semigroups
 * [new ref]         2492224a8237002a2a8545a1af63c9e0420452d1 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 2492224 Version 5.3.3