$ git clone -n https://src.fedoraproject.org/rpms/kf6-ktextwidgets.git /var/lib/mock/f42-build-3356295-45027/root/chroot_tmpdir/scmroot/kf6-ktextwidgets
Cloning into '/var/lib/mock/f42-build-3356295-45027/root/chroot_tmpdir/scmroot/kf6-ktextwidgets'...
$ git fetch origin 64927a86aceaba95f6ca17a1015fc7d6d823b6b0:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kf6-ktextwidgets
 * [new ref]         64927a86aceaba95f6ca17a1015fc7d6d823b6b0 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 64927a8 6.12.0