$ git clone -n https://src.fedoraproject.org/rpms/kf6-kdeclarative.git /var/lib/mock/f42-build-862210-170689/root/chroot_tmpdir/scmroot/kf6-kdeclarative
Cloning into '/var/lib/mock/f42-build-862210-170689/root/chroot_tmpdir/scmroot/kf6-kdeclarative'...
$ git fetch origin 3c5dc126c66cef6689a0d62d6930f9ee744ea432:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kf6-kdeclarative
 * [new ref]         3c5dc126c66cef6689a0d62d6930f9ee744ea432 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3c5dc12 6.8.0