yams #135221 Crash on ValidationError with global message [validation pending]

eg None key in errors dict

prioritynormal
typebug
done in0.37.0
load left0.000
closed by#21f276de5abb [validation] test and fix crash on global message (None in errors dict). Closes #135221
patch[validation] test and fix crash on global message (None in errors dict). Closes #135221 [applied]