Input: Re-enable input accumulation disabled by error in 3.4 #62826
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Input accumulation was implemented and enabled by default in 3.1, and
I don't recall major complaints around it (or bugs were fixed).
In 3.4, #42220 added input buffering and apparently toggled input
accumulation off by mistake.
This led to multiple bug reports about degraded performance on Windows,
or simply unexpected behavior change (see linked issues in #55037).
Fixes #55037.
We don't plan to cherry-pick this to
3.4
as this branch has been in use for too long already with input accumulation disabled, and this would be a breaking change unexpected in a patch release.For
3.5
, we should point out this change clearly in the changelog so that users who need the precision of disabled input accumulation know to change it back when upgrading.