I was not able to reproduce your problem on MW 1.25 + SMW 2.3, maybe the simplest answer is to simply update my installation.
However, I believe that you are mistakenly trying to store multiple values ββin one property, instead you should use another function to store this type of record. Semantic Mediawiki has a so-called subobject for storing a set of properties related to each other in one place.
{{
And then you can simply request this data as follows:
{{
And the template has something like this:
Record info: * Name 1: {{{?Name1}}} * Name 2: {{{?Name2}}} * Year: {{{?Year}}} * Location: {{{?Location}}}
wakalaka
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