$ git clone -n https://src.fedoraproject.org/rpms/libkrunfw.git /var/lib/mock/f39-build-2553176-61951/root/chroot_tmpdir/scmroot/libkrunfw
Cloning into '/var/lib/mock/f39-build-2553176-61951/root/chroot_tmpdir/scmroot/libkrunfw'...
$ git fetch origin 6d48ed0aacd3b402f4e4dd3cadbc26d5cb6876cb:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libkrunfw
 * [new ref]         6d48ed0aacd3b402f4e4dd3cadbc26d5cb6876cb -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6d48ed0 Update to version 4.0.0