Basically $form_state->setErrorByName() but in an action node.
neeravbm created an issue. See original summary.
I will work on this.
Issue #3053267 by neeravbm, rensingh99: Create an action node to set...
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Comment #2
rensingh99 commentedI will work on this.
Comment #4
neeravbm commentedComment #5
neeravbm commented