$ git clone -n https://src.fedoraproject.org/rpms/knetwalk.git /var/lib/mock/f40-build-2393120-60531/root/chroot_tmpdir/scmroot/knetwalk
Cloning into '/var/lib/mock/f40-build-2393120-60531/root/chroot_tmpdir/scmroot/knetwalk'...
$ git fetch origin bc92e25488e15afa0d753302ecfccebeb141e6ce:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/knetwalk
 * [new ref]         bc92e25488e15afa0d753302ecfccebeb141e6ce -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at bc92e25 24.01.95