$ git clone -n https://src.fedoraproject.org/rpms/strace.git /var/lib/mock/f41-build-side-1-2966215-35799/root/chroot_tmpdir/scmroot/strace
Cloning into '/var/lib/mock/f41-build-side-1-2966215-35799/root/chroot_tmpdir/scmroot/strace'...
$ git fetch origin 135a6a9f1cda2e58beb250743a508c0110344c74:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/strace
 * [new ref]         135a6a9f1cda2e58beb250743a508c0110344c74 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 135a6a9 6.11-1