$ git clone -n https://src.fedoraproject.org/rpms/kf6-ktextwidgets.git /var/lib/mock/f40-build-743123-111089/root/chroot_tmpdir/scmroot/kf6-ktextwidgets
Cloning into '/var/lib/mock/f40-build-743123-111089/root/chroot_tmpdir/scmroot/kf6-ktextwidgets'...
$ git fetch origin e8420a2b5a33ee0ea556162a1e30d26a61746e59:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kf6-ktextwidgets
 * [new ref]         e8420a2b5a33ee0ea556162a1e30d26a61746e59 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e8420a2 5.245.0