I unarchived this bug as the package still contains the source file act_area.c with the same non-free license.
I marked it as found in xball/3.0-12 because it was the earliest version I was able to dig on debsnaps. As such, I couldn't pinpoint the exact version between that and 3.0-5 in which the file was reintroduced. -- ⢀⣴⠾⠻⢶⣦⠀ David da Silva Polverari <polver...@debian.org> ⣾⠁⢠⠒⠀⣿⡁ ⢿⡄⠘⠷⠚⠋⠀ Debian: The universal operating system ⠈⠳⣄⠀⠀⠀⠀