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Not sure if this should be a discussion or bug, so please move accordingly.

In 2.2.x I had the following in my template.

HTML:

Code:
<xf:option name="option_array[]" value="myvalue" checked="{{ contains($data.items, 'item1') ? 'checked' : '' }}">
   myvalue
</xf:option>

In 2.3.4 I see a type error if $data.items is null, since contains is expecting a value.

Is this a bug where the template engine should check for null values or does the template engine expect types to be strictly enforced...

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