Widget expressions: (Partly) Fix handling of Item name being undefined
#2301
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When using the
@
and@@
shortcuts for Item displayState and state in widget expressions, properly handle cases where the Item name isundefined
.Unfortunately I did not find a way to improve that for
items[itemName]
expressions.Requesting the Item state from the server when the Item name is undefined leads to warnings in the log (which might cause some confusion for the users):