Fragment/Scarab tab: Problem w. Upgrade function

The Upgrade function on the Fragment/Scarab tab is annoyingly hyper-active.

Unlike the other stash tabs which also have an Upgrade function (Essence, Oil), if you just click once on a stack of scarabs then the tab will upgrade as many scarabs as possible in that stack (instead of just three scarabs per click). This is far from ideal.

Please change the Scarab tab's Upgrade function so that it just upgrades three scarabs per click (like the Oil and Essence tabs already do). I'm getting really annoyed at getting more scarabs upgraded than I'd intended.