Rename "Version" field to "Earliest Affected Version" in Bugzilla?

[Vincent Povirk]

> The original version is useful to test the original bug, it may be the
> difference between resolving it as FIXED (was able to reproduce and no
> longer happens) or WORKSFORME (could not reproduce in the reported
> version and nowadays).

Why is the original version better for this purpose than a later
version that was tested and known to be affected by the bug?