Freagarach eae5840b0e Fix structure tree/civinfo with empty civ history. ...

Since the history string is optional, don't fail without it.

Based on a patch by: @Silier
Fixes #6651

This was SVN commit r27427.

2023-01-12 10:34:53 +00:00

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Fix structure tree/civinfo with empty civ history.

2023-01-12 10:34:53 +00:00

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