The bars freeze at this point: https://cdn.discordapp.com/attachments/859844710679445514/925904191258505336/unknown.png
There's enough stamina for two swings of the axe/pickaxe which does cause the stamina to lower as normal, reaching a point where you can't use actions anymore, but after a second or two it refills to the pictured amount, allowing for two swings yet again. ver 0.8.11.600