Server List Glitch

If you refresh the server list where it says "Multiplayer" a certain number of times, all servers on the list gets deleted. This is very annoying especially if I forget an IP to a specific server cause it means I cant join it anymore.

Steps to get this glitch to work.
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1. Add any amount of servers to your server list.
2. Refresh the server list A LOT of times(eg. joining servers and leaving them or by spamming the "Refresh" button).
3. If you do Step 2 too many times it'll delete EVERY server on your server list.

PLZ FIX THIS MOJANG!!!!!!!!!!!!!!!!!!