Incorrect folder content when switching folders

[RunboxJoe]

Describe the bug
When switching into or out of the sent folder, the message list updates immediately to a list of incorrect values (only the from/to field updates to the incorrect values).
A second later the message list contents is correctly updated.

To Reproduce
Steps to reproduce the behaviour:
With or without local index

1. Enter sent folder, observe bug
2. Enter any other folder after, observe bug

Desktop (please complete the following information):

• Browser: not browser specific, same issue on Firefox and edge