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-rw-r--r--script/core/linker.lua5
1 files changed, 4 insertions, 1 deletions
diff --git a/script/core/linker.lua b/script/core/linker.lua
index 64aaef1c..46a76127 100644
--- a/script/core/linker.lua
+++ b/script/core/linker.lua
@@ -147,7 +147,10 @@ local function getID(source)
end
util.revertTable(IDList)
local id = table.concat(IDList, '|')
- local parentID = table.concat(IDList, '|', 1, -2)
+ local parentID
+ if #IDList > 1 then
+ parentID = table.concat(IDList, '|', 1, -2)
+ end
return id, current, parentID
end