Cash tracking always shows an alert based on the current cash situation

[GiamBoscaro]

I was editing some old transactions and I have noticed that a lot of times I get the red alert at the top saying that my account does not have enough cash to complete the transaction. The cash in the account that is shown is the current one. This is wrong as I expected it to show and calculate the cash availability based on the cash at that time. There is also no way that I have found to show the cash over time in the portfolio, thus I cannot verify that the cash was always positive.

[sticilface]

Yeah I also noticed this. A purchase from a month ago uses the current cash value.