The fix to clipping into water tiles mentioned in the Fishy Owl update was quite a bit of a workaround rather than an actual fix, which also introduced the problem of not being able to put down carried things when mounted. It was there because a real fix was quite tricky and I had to think it through for a fair bit before implementing it. I'm now pushing the real fix, which involves quite fundamental changes to how player movement works.
There shouldn't be any visible changes (apart from dropping objects from mounts working again), but since the code is so fundamental, there's quite some possibility for unintended side effects, so I'm just posting this to ask you to please keep your eyes open for potentially bad such side effects, and report them as soon as possible if exploitable. Thank you!