the mw.Api instance seems to be for the local wiki.
* After a client performs an action which alters a database that has replica databases,
MediaWiki will wait for the replica databases to synchronize with the master database
- while it renders the HTML output. However, if the output is a redirect, it will instead
- alter the redirect URL to include a ?cpPosTime parameter that triggers the database
- synchronization when the URL is followed by the client.
+ while it renders the HTML output. However, if the output is a redirect to another wiki
+ on the wiki farm with a different domain, MediaWiki will instead alter the redirect
+ URL to include a ?cpPosTime parameter that triggers the database synchronization when
+ the URL is followed by the client. The same-domain case uses a new cpPosTime cookie.
=== External library changes in 1.28 ===