Revert "Unblacklist /upgrade creates a new room (#7228)" (#7254)

This reverts commit 59f0ca8b87c15a314859d94978d90a8aa0e7543b.

1 files changed, 2 insertions, 0 deletions

diff --git a/.buildkite/worker-blacklist b/.buildkite/worker-blacklist

index fd98cbbaf6..094b6c94da 100644
--- a/.buildkite/worker-blacklist
+++ b/.buildkite/worker-blacklist
@@ -5,6 +5,8 @@ Message history can be paginated
 
 Can re-join room if re-invited
 
+/upgrade creates a new room
+
 The only membership state included in an initial sync is for all the senders in the timeline
 
 Local device key changes get to remote servers