Your bug report

#29002: it.first_visible_x is erroneously 0 while horizontal scrolling.

which was filed against the emacs package, has been closed.

The explanation is attached below, along with your original report.
If you require more details, please reply to 29002@debbugs.gnu.org.

-- 
29002: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=29002
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