$ git clone -n http://fedora.riscv.rocks:3000/rpms/gcc.git /var/lib/mock/f39-build-730145-102348/root/chroot_tmpdir/scmroot/gcc
Cloning into '/var/lib/mock/f39-build-730145-102348/root/chroot_tmpdir/scmroot/gcc'...
$ git fetch origin 7c5a10cdca6a4b848addb9187743c4ee1dc92372:KOJI_FETCH_HEAD
From http://fedora.riscv.rocks:3000/rpms/gcc
 * [new ref]         7c5a10cdca6a4b848addb9187743c4ee1dc92372 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7c5a10c Bump release