Don't try to update lines/line numbers until after initial measurement

Fixes #3047

src/editor-component.coffee

@@ -95,7 +95,8 @@ EditorComponent = React.createClass
         GutterComponent {
           ref: 'gutter', onMouseDown: @onGutterMouseDown, lineDecorations,
           defaultCharWidth, editor, renderedRowRange, maxLineNumberDigits, scrollViewHeight,
-          scrollTop, scrollHeight, lineHeightInPixels, @pendingChanges, mouseWheelScreenRow, @useHardwareAcceleration
+          scrollTop, scrollHeight, lineHeightInPixels, @pendingChanges, mouseWheelScreenRow,
+          @useHardwareAcceleration, @performedInitialMeasurement
         }
 
       div ref: 'scrollView', className: 'scroll-view', onMouseDown: @onMouseDown,

src/gutter-component.coffee

@@ -39,7 +39,7 @@ GutterComponent = React.createClass
 
   componentDidMount: ->
     @appendDummyLineNumber()
-    @updateLineNumbers() if @props.renderedRowRange?
+    @updateLineNumbers() if @props.performedInitialMeasurement
 
   # Only update the gutter if the visible row range has changed or if a
   # non-zero-delta change to the screen lines has occurred within the current
@@ -59,6 +59,8 @@ GutterComponent = React.createClass
     false
 
   componentDidUpdate: (oldProps) ->
+    return unless @props.performedInitialMeasurement
+
     unless isEqualForProperties(oldProps, @props, 'maxLineNumberDigits')
       @updateDummyLineNumber()
       @removeLineNumberNodes()

src/lines-component.coffee

@@ -66,7 +66,8 @@ LinesComponent = React.createClass
     false
 
   componentDidUpdate: (prevProps) ->
-    {visible, scrollingVertically} = @props
+    {visible, scrollingVertically, performedInitialMeasurement} = @props
+    return unless performedInitialMeasurement
 
     @clearScreenRowCaches() unless prevProps.lineHeightInPixels is @props.lineHeightInPixels
     @removeLineNodes() unless isEqualForProperties(prevProps, @props, 'showIndentGuide', 'invisibles')