Forum: "open selected message" with return key does not open thread but user profile [BUG]

[Forum User]

STR:

1. Enter https://forum.dlang.org/group/learn
2. Press key 'J' (selects first message)
3. Press return key

expected result: https://forum.dlang.org/thread/...
actual result: https://forum.dlang.org/user/...