Comment 2 for bug 956558

I discovered this, and the behavior surprised me. I was editing an old transaction to add a category where none previously existed. I would not have expected any other attributes to change. So after saving and looking at a report, I realized I had a negative balance instead of the previously positive balance. Only when I updated the category on other old transactions did I realize that the "+" was changing to a "-". I've been using Financisto for a month, and this is the first time I've found what I consider a real bug. This behavior is very unintuitive to me.