Fix: Always disable expiry if maxzoom==0 #2424
Merged
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maxzoom==0 is the default setting and it is documented to means that there is no expire. That's what the enabled() function checks.
But disabling this in from_bbox() only disabled the expire for that case, not for linestrings. Better to do this check in the function that's called from outside the expire code: from_geometry().
We also need to fix some tests that were using maxzoom==0 by changing their setting to use maxzoom==1.