There's also been talk of removing the (undo) button from multi-revision diffs.
I think this is probably a more sensible option.

ayg wrote:

I think probably less. Why drop a potentially handy feature rather than
extending it?

DiffEng: change Undo link construction for undoing several edits

attachment diffeng.patch ignored as obsolete

EditPage: Undo uses two params now; can revert several edits

attachment editpage.patch ignored as obsolete

Update editpage; change summary schema

OK, this now uses "undo-summary" language only when one revision was undone and
"undo-summary_set" for muli-edit undoing.

The following can then be added to the en lang stuff:
'undo-summary_set' => 'Undo revisions $1 (by [[Special:Contributions/$3]]) to
$2 (by [[Special:Contributions/$4]])'

attachment editpage.patch ignored as obsolete

The other 6 (and later more) langs need updating as well for this to work.

Those links above aren't piped...

Actually, for multi edit reverts, the summary should just use regular userpage
links given the cutoff length.

Update; DiffEng, remove undo links from top diffs

attachment diffeng.patch ignored as obsolete

DiffEng; put undo links back on top diffs

Attached:

Done in r20317.

I've reverted that in r20755; it appears to make incompatible changes to the URI
parameters for operating the undo feature, which is:

a) gratuitously annoying

b) would break user JS tools based on it

Re-done in r20785.

cbm.wikipedia wrote:

The automatic edit summary for undoing multiple versions was in the original
attachment 2868 but was never implemented. Could someone add that in?

Last part of attachment 2868, which wasn't applied

Attached:

Setting backed to fixed, the bug was to enable multi-edit undo and it was done.

Summaries for multi-edit undo must be manual, as any automatic one would just be
to hard to read and be useful.

If you want summaries for that anyway, make a new bug report.