[i18ncube] fix crash due to duplicated messages in generated schema.pot Add a test case and fix regression introduced in e713c47a993d. Relates to #2811282

[i18n test] load_po: fix bug in case of multi-lines msgid and ensure there are no duplicated messages

[i18n test] simplify test cube a bit by only providing a views module, no package

[web] consider inlined relations in has_editable_relation. Closes #3049970 In some cases where the user can only add/edit inlined relations (though actually edit perms of the inlined relation doesn't seem checked), the "modify" action doesn't appear while it should.

[web test] silent 3.13 warning

[editcontrollers] Account for role in the ordering of entities (Complements #3031719) Only role='object' was correctly accounted for by 570208f74a84

[migration.sync_schema_props_perms] ensure all participants to a unique together constraint are there before adding CWUniqueConstraint. Closes #3038345

[session commit] save back exception context to avoid potentiel cluttering if some revert operation raise an exception

[pkg] python-central has been removed from Debian

[pkg] prepare 3.17.4

[pkg] merge centos 3.17.1-2 in stable (prepare 3.17.4)

Added tag cubicweb-centos-version-3.17.1-2 for changeset 965f894b63cb

[rqlrewrite] fix rqlrewrite unpredictability vs relation sharing. Closes #3036144 The relations index used to determine if relation may be shared only considered a single relation node per relation type. So when the same relation type occurs several time, dict order give unpredictable result. We shall properly consider all relations instead. Tentative test case included (but bug reproduction is by definition unpredictable...)

[rqlrewrite] rewrite doesn't need a solutions argument, always use the Select'ones Also, do a copy systematically else it may lead to empty solutions depending on the rewrite path. Test case tentative included in the following changeset.

[rql rewrite] equivalent but much simpler flow

[pkg] Prepare a new RPM release