revset: drop redundant filteredset from right-hand side set of "or" operation Since 5548f558db3d, it should no longer be necessary because the addset can remove duplicates correctly.

getbundle: sort bundlecaps before exchanging then over the wire The 'bundlecaps' argument is built as a set, we need to stabilise the order before exchanging them. Otherwise, in the test, http logs are unstable when the 'bundlecaps' contains something (eg: using bundle2).

hg-ssh: reject push earlier (on pretxnopen) We now have a lock triggered for any transaction. We use it to ensure no-read are made in read-only mode. We need more that just "no changegroup is added", since bundle2 allows for more than just changegroup to be exchanged. We still protect pushkey as it may write data without opening a transaction.