Changelog: add #14924

Author: jeherve

readme.txt

@@ -117,6 +117,7 @@ There are opportunities for developers at all levels to contribute. [Learn more
 **Bug fixes**
 
 * Connection: fix connection issues for sites with a plan in a "pending" state.
+* Site Logo: avoid PHP notices in the Customizer, when no logo is set yet.
 * Widgets: fix conflicts between some themes and the live countdown feature in the Milestone Widget.
 
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