transaction function has no try/finally block

[plinyar]

I got an exception inside a code block wrapped in transaction function, after that reactions stopped working.
Problem was found that the function increments globalState.inTransaction and then decrements it without try/finally block.

[mweststrate]

You are right. Should be addressed here:

mobx/src/core/transaction.ts

Line 14 in 99e70d5

const res = action.call(thisArg);

[mweststrate]

Fixed in mobx@2.6.3