Avoid to update inlined relation column to NULL when deleting entities When deleting entities, cubicweb run a rql DELETE on all relations to trigger hooks. For an inlined relation this also mean set the column to NULL. This operation may fail if there's additional constraints on the column. Also this is a weird and useless behavior since deleting the entity row will by definition delete the relation. We still doesn't handle the case where both subject and object are going to be deleted because rows need to be deleted in a particular order that cubicweb doesn't handle. Add a test checking UPDATE does not occur but hooks are correctly called. Closes #17236690

.TH cubicweb\-ctl 1 "2010-01-14" cubicweb\-ctl
.SH NAME
.B cubicweb\-ctl
\- cubicweb control utility


.SH SYNOPSIS
.B  cubicweb-ctl <command>
[
.I OPTIONS
] [
.I <command arguments>
]

.SH DESCRIPTION
.PP
CubicWeb utility to create and control instances, and more generally do all
cubicweb's related tasks you can have to do using the command line. Available
commands will depends on which part of the framework are installed.
.PP
Type
.B "cubicweb\-ctl <command> \fB\-\-help\fR"
for more information about a specific command.

.SH COPYRIGHT 
Copyright (c) 2003-2010 LOGILAB S.A. (Paris, FRANCE).
http://www.logilab.fr/ -- mailto:contact@logilab.fr