Hello again!

Well, I was recently working on a picture. Honestly I don't like drawing the lineart of an image in the PC, so I ussually do it in paper and scan it later. Once the lineart is complete and clean, if it is needed to change the color of the lineart it's easy to use the color balance curves or an equivalent function, depending of the software. In my case, when I have a definite color I want to used to replace the original lineart color, I just lock the alpha channel and use the "fill with foreground/background color" command (Shift+Backspace in Krita, Ctrl+. in GIMP, Shift+F5 in Photoshop), this tecnique is very fast and works on Photoshop or GIMP, but when I tried it in Krita it didn't quite gave me the same result, seemingly, the "fill" command overrides the alpha channel locking, and as a result the whole picture is filled with the foreground/background color, instead of only the non-transparent pixels. Is anyone else having this same behavior? Currently I'm using version 2.5.2 on Kubuntu 12.04.