I wouldn't say it's not an option to not revert both changes. In that case the freeglut3-dbg package would just not be marked Multi-Arch: same.
But in any case, reverting both those changes gets me a -dbg package with these contents:
-rw-r--r-- root/root 508467 2012-08-23 00:54 ./usr/lib/debug/usr/lib/x86_64-linux-gnu/libglut.so.3.9.0
That looks like a correctly arch-qualified path already to me.
I wouldn't say it's not an option to not revert both changes. In that case the freeglut3-dbg package would just not be marked Multi-Arch: same.
But in any case, reverting both those changes gets me a -dbg package with these contents:
-rw-r--r-- root/root 508467 2012-08-23 00:54 ./usr/lib/ debug/usr/ lib/x86_ 64-linux- gnu/libglut. so.3.9. 0
That looks like a correctly arch-qualified path already to me.