More refactoring in `get_events_as_list` (#5707)

We can now use `_get_events_from_cache_or_db` rather than going right back to
the database, which means that (a) we can benefit from caching, and (b) it
opens the way forward to more extensive checks on the original event.

We now always require the original event to exist before we will serve up a
redaction.

1 files changed, 1 insertions, 0 deletions

diff --git a/changelog.d/5707.bugfix b/changelog.d/5707.bugfix
new file mode 100644
index 0000000000..aa3046c5e1
--- /dev/null
+++ b/changelog.d/5707.bugfix
@@ -0,0 +1 @@
+Fix some problems with authenticating redactions in recent room versions.