$ git clone -n https://src.fedoraproject.org/rpms/kf6-ktextwidgets.git /var/lib/mock/f40-build-788239-135077/root/chroot_tmpdir/scmroot/kf6-ktextwidgets
Cloning into '/var/lib/mock/f40-build-788239-135077/root/chroot_tmpdir/scmroot/kf6-ktextwidgets'...
$ git fetch origin 47938f41d4f685083466427578a8cd658294150b:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kf6-ktextwidgets
 * [new ref]         47938f41d4f685083466427578a8cd658294150b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 47938f4 6.0.0