Native line numbers display and tab stops

[Eli Zaretskii]

Someone reported on Reddit that turning on native line numbers display
(available on the line-numbers branch) doesn't update the tab stops to
start from zero after the line numbers.  This looked like a bug, but I
see that the same happens when line-prefix is set to a non-nil value.

So maybe this is a feature?  What do people think?  Should I fix this
for all display features which insert stuff before the line beginning?

TIA