V10.1.4588 bug: changing to conversations wipes column choice and loses search results

With View > Conversations > Disable Conversations.

1 Use Columns Configuration to configure columns
2 Enter a term in the search bar
3 Click View > Conversations > Show Conversations in All Views

Expected: message list having column configuration and only matching messages
Observed: message list having column configuration wiped and all messages - despite that search bar still shows the search term.