Normalize button only normalizes weights correctly if pressed twice

[blazma]

On the fitness tab, after selecting all fitness functions each with an un-normalized weight of 1, clicking the normalize button will first yield an incorrect value, as if it normalized it for 1 function less than selected. After clicking it for a second time, the correct normalized weights appear. I attached some screenshots to demonstrate.

(Also, maybe it would be nice if the weights were not shown up to the 18th digit but rounded to some reasonable number of digits, as when the column is not wide enough, all the user will see is "0....")

[blazma]

Since the latest change, this issue appears to be solved. However, some new strange behavior appeared: it seems that after clicking all features, the last cell must be left using the cursor or the arrows, otherwise it won't be selected. It appears as if the cells are not selected by entering them but rather by leaving them.