import not exacting?

[Fairlight]

I'm using import in some code, and noticed that I was ending up with
4-digit zipcodes after the import.  Thing is, they're ones which start as a
zero.  

If I were using a cast variable for intake, I'd expect this.  However, I'm
using a wholly uncast variable.  Shouldn't it import -literally- into an
uncast variable?

I'm getting very lucky that lookups seem to match on key field, even with
this screwy non-literal lead-zero translation.  It's always worked, so it's
gone unnoticed until now.  But technically it should always be five digits,
even uncast.

mark->
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