docs: clarify resize and current mappings

diff --git a/docs/design/part-memory.txt b/docs/design/part-memory.txt
index 0d4ce4f..c8b69eb 100644 (file)
--- a/docs/design/part-memory.txt
+++ b/docs/design/part-memory.txt
@@ -127,6 +127,8 @@ Data Access
  When the final reference on a memory object is dropped, all outstanding
  mappings are automatically unmapped.
 
+ Resizing a GstMemory does not influence any current mappings.
+
 
 Copy
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