What does F5 do in Minecraft?

What does F5 do in Minecraft? When the F5 key is pressed while on the multiplayer screen, it refreshes the server list. When the inventory is open, ⇧ Shift + clicking on an item or stack moves it between the inventory and the hotbar.

When the F5 key is pressed while on the multiplayer screen, it refreshes the server list. When the inventory is open, ⇧ Shift + clicking on an item or stack moves it between the inventory and the hotbar.
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