Wrong validation error on entity record list update

[bzashev]

I am trying to update a "is default" property of an existing record list. I get a number of validation error which also are very confusing:
"There is already an item with such list name or id!"
"Wrong name. There is no list with such name or id!"

[bzashev]

another one in the same list validation,
when there are columns with fieldFromRelation and I am trying to make a match of a totally unrelated list details meta visibleColumnsCount it returns
"Relation name is required!" - columns.relationName
"Field name is required!" - "columns.fieldName"

[rumen-yankov]

fixed