Fix test migration crash waiting to happen due to inferred relations Avoid crashing when a relation definition which is already known (due to being inferred) gets explicitly added. As explained in a comment, this would deserve more thinking, but at least this fixes a test failure with computed relations.

fix typo in syncschema hooks

[test] Make test_undo_api less random The order in which hooks are run is not predictable if they have the same 'order' attribute, which is the case for SetOwnershipHook and SetInitialStateHook. So don't assume in_state will be set before created_by.

merge 3.17.17 into 3.18 branch

[wsgi] Fix unicode decoding in POST The application/x-www-form-urlencoded sent by firefox or chrome is utf-8 encoded BEFORE being urlencoded. Hence, decoding must urldecode THEN decode the utf-8 string, and not the other way around.

[wsgi] add the --debug / -D option to the wsgi command

[wsgi] Fix multiple variables reading in params Closes #4306081

[wsgi] Set self.vreg Closes #4306049

[wsgi] Add missing import Closes #4305988

[wsgi] Fix https detection - 'HTTPS' is not part of wsgi, it is a CGI variable. The right wsgi variable is 'wsgi.url_scheme' - Force https if url starts with '/https/' (and remove the prefix from the path. Closes #4305985