$ git clone -n https://src.fedoraproject.org/rpms/kf6-ktexteditor.git /var/lib/mock/f40-build-788160-135049/root/chroot_tmpdir/scmroot/kf6-ktexteditor
Cloning into '/var/lib/mock/f40-build-788160-135049/root/chroot_tmpdir/scmroot/kf6-ktexteditor'...
$ git fetch origin b3b660157b810805a43e65250997a9ec91b8a6ae:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kf6-ktexteditor
 * [new ref]         b3b660157b810805a43e65250997a9ec91b8a6ae -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b3b6601 feat: rebuild due to sources re-spin