Fix structure tree/civinfo with empty civ history.
commit163dbd0654aa2798bd1a98f01343b0d3b4969bdc
authorFreagarach <Freagarach@3db68df2-c116-0410-a063-a993310a9797>
Thu, 12 Jan 2023 10:34:53 +0000 (12 10:34 +0000)
committerFreagarach <Freagarach@3db68df2-c116-0410-a063-a993310a9797>
Thu, 12 Jan 2023 10:34:53 +0000 (12 10:34 +0000)
tree23adf621f0f272342873a228bc52226f3576e8e1
parenta9e965f2cbaf57c0ce09d4a468da0980117c7166
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

git-svn-id: https://svn.wildfiregames.com/public/ps/trunk@27427 3db68df2-c116-0410-a063-a993310a9797
binaries/data/mods/public/gui/reference/civinfo/CivInfoPage.js
binaries/data/mods/public/gui/reference/civinfo/Sections/HistorySection.js
binaries/data/mods/public/gui/reference/structree/StructreePage.js