cubicweb-bootstrap #17059496 may eat request.message in some condition [validation pending]

on pages displaying a ModalFormRenderer (e.g. login link), req.message will be eaten while not displayed if there is no 'showmessage' in form params.

priorityimportant
typebug
done in1.2.5
load left0.000
closed by#0a1380fb63c1 Stop eating req.message in ModalFormRenderer.open_form
patchStop eating req.message in ModalFormRenderer.open_form [applied]