Leaflet/Leaflet — pull request #1833 by danzel (2013-07-05 02:39:41+00:00)
Title: Fix worldCopyJump if you start zoomed all the way out. Fixes #1831

Fix worldCopyJump if you start zoomed all the way out. Fixes #1831

Without this Map.Drag.js _onPreDrag calculates newX as NaN.