cubicweb #3049970 has_editable_relations doesn't consider inlined forms [validation pending]

leading to 'modify' link not appearing in cases where it should

prioritynormal
typebug
done in3.17.4
load0.100
load left0.000
closed by#c32a21bf88bb [web] consider inlined relations in has_editable_relation. Closes #3049970
patch[web] consider inlined relations in has_editable_relation. Closes #3049970 [applied]