Update sippy.mdx (#19587)

* Update sippy.mdx

CUSTESC-47909

* Update src/content/docs/r2/data-migration/sippy.mdx

* Update src/content/docs/r2/data-migration/sippy.mdx

* Update src/content/docs/r2/data-migration/sippy.mdx

* Update src/content/docs/r2/data-migration/sippy.mdx

* Update src/content/docs/r2/data-migration/sippy.mdx

* Update src/content/docs/r2/data-migration/sippy.mdx

---------

Co-authored-by: Jun Lee <[email protected]>

Author: 2 people

src/content/docs/r2/data-migration/sippy.mdx

@@ -180,8 +180,10 @@ When Sippy is enabled, it changes the behavior of certain actions on your R2 buc
 						Remaining metadata will be omitted.
 					</li>
 					<li>
-						For larger objects, multiple GET requests may be required to fully
-						copy the object to R2.
+						For larger objects (greater than 199 MiB), multiple GET requests may be required to fully copy the object to R2.
+					</li>
+					<li>
+						If there are multiple simultaneous GET requests for an object which has not yet been fully copied to R2, Sippy may fetch the object from the source storage bucket multiple times to serve those requests.
 					</li>
 				</ul>
 			</td>