cubicweb #4903918 computed relations appear in autoform [validation pending]

prioritynormal
typebug
done in3.20.4
load1.000
load left0.000
closed by#a0a11be5a9cb [schema] set permissions that do not allow edition on computed relation. Closes #4903918
patch[schema] set permissions that do not allow edition on computed relation. Closes #4903918 [applied]