Issue description:
Trying to delete the number in the 'current' field of a counter only sets it to 1, so you can't type in a number that doesn't start with 1.

You can reset it by changing the 'counter' field, which sets 'current' to 0, and then you can left-click it and type a different number. But just trying to delete whatever is in the 'current' field doesn't work

Steps to reproduce:
Place down a Counter, select the "current" field.
Press backspace or right-click in the field, and the number will be set to 1, and won't be deleted.
You can add more numbers (eg: 1222), and delete them (122, 12, 1), but you can't get rid of the first 1.

Versions:

• Minecraft: 1.12.2
• Forge: 14.23.4.2751
• McJtyLib: 1.12-3.0.5
• RFTools: 1.12-7.56

In Enigmatica 2 Expert Skyblock pack