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-rw-r--r--Help/manual/cmake-generator-expressions.7.rst4
1 files changed, 3 insertions, 1 deletions
diff --git a/Help/manual/cmake-generator-expressions.7.rst b/Help/manual/cmake-generator-expressions.7.rst
index 1ef1ec8..22c14df 100644
--- a/Help/manual/cmake-generator-expressions.7.rst
+++ b/Help/manual/cmake-generator-expressions.7.rst
@@ -599,7 +599,9 @@ String Transformations
.. versionadded:: 3.15
- Removes duplicated items in the given ``list``.
+ Removes duplicated items in the given ``list``. The relative order of items
+ is preserved, but if duplicates are encountered, only the first instance is
+ preserved.
.. genex:: $<FILTER:list,INCLUDE|EXCLUDE,regex>