$ git clone -n https://github.com/fedora-riscv/compiler-rt /var/lib/mock/f39-build-2558230-62012/root/chroot_tmpdir/scmroot/compiler-rt
Cloning into '/var/lib/mock/f39-build-2558230-62012/root/chroot_tmpdir/scmroot/compiler-rt'...
$ git fetch origin 5b3eacf55448ecdc2919a4c20286d071036842aa:KOJI_FETCH_HEAD
From https://github.com/fedora-riscv/compiler-rt
 * [new ref]         5b3eacf55448ecdc2919a4c20286d071036842aa -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 5b3eacf Merge remote-tracking branch 'fedora/f39' into f39-rv64