The issue was the rcs files were simply corrupt - no matter what tool you used the older deltas were just bad. Just people didn't notice/care as they were "old" revisions.
And I couldn't find any tool that supported the mks "project" files that linked multiple rcs revisions into a single "commit", so something a little custom was needed anyway. At least for the ancient mks version used.
Quite a bit of effort was put into it during the "official" migration, but they eventually gave up too as even the oldest backup archives they could find had the same issues.
The issue was the rcs files were simply corrupt - no matter what tool you used the older deltas were just bad. Just people didn't notice/care as they were "old" revisions.
And I couldn't find any tool that supported the mks "project" files that linked multiple rcs revisions into a single "commit", so something a little custom was needed anyway. At least for the ancient mks version used.
Quite a bit of effort was put into it during the "official" migration, but they eventually gave up too as even the oldest backup archives they could find had the same issues.