Single line changeset.

Author: wilhuff

.changeset/silent-cars-burn.md

@@ -2,6 +2,4 @@
 '@firebase/firestore': patch
 ---
 
-handle `ignoreUndefinedProperties` in `set({ merge: true })`. Previously this
-would behave as if the undefined value were `FieldValue.delete()`, which wasn't
-intended.
+handle `ignoreUndefinedProperties` in `set({ merge: true })`. Previously this would behave as if the undefined value were `FieldValue.delete()`, which wasn't intended.