Delete at the end of a line above a fold deletes the folded lines (leaving a newline)

src/app/cursor.coffee

@@ -155,4 +155,7 @@ class Cursor
   getCurrentLineBufferRange: ->
     @editSession.bufferRangeForBufferRow(@getCurrentBufferRow())
 
+  isAtEndOfLine: ->
+    @getBufferPosition().isEqual(@getCurrentLineBufferRange().end)
+
 _.extend Cursor.prototype, EventEmitter

src/app/display-buffer.coffee

@@ -126,6 +126,9 @@ class DisplayBuffer
     return unless folds = @activeFolds[bufferRow]
     (folds.sort (a, b) -> b.endRow - a.endRow)[0]
 
+  largestFoldStartingAtScreenRow: (screenRow) ->
+    @largestFoldStartingAtBufferRow(@bufferRowForScreenRow(screenRow))
+
   screenLineRangeForBufferRange: (bufferRange) ->
     @expandScreenRangeToLineEnds(
       @lineMap.screenRangeForBufferRange(

src/app/edit-session.coffee

@@ -194,7 +194,7 @@ class EditSession
     @displayBuffer.destroyFoldsContainingBufferRow(bufferRow)
 
   unfoldCurrentRow: ->
-    @displayBuffer.largestFoldStartingAtBufferRow(@getLastCursor().getCurrentBufferRow())?.destroy()
+    @largestFoldStartingAtBufferRow(@getLastCursor().getCurrentBufferRow())?.destroy()
 
   destroyFold: (foldId) ->
     fold = @displayBuffer.foldsById[foldId]
@@ -207,6 +207,9 @@ class EditSession
   largestFoldStartingAtBufferRow: (bufferRow) ->
     @displayBuffer.largestFoldStartingAtBufferRow(bufferRow)
 
+  largestFoldStartingAtScreenRow: (screenRow) ->
+    @displayBuffer.largestFoldStartingAtScreenRow(screenRow)
+
   autoIndentTextAfterBufferPosition: (text, bufferPosition) ->
     return { text } unless @autoIndent
     @tokenizedBuffer.autoIndentTextAfterBufferPosition(text, bufferPosition)

src/app/selection.coffee

@@ -145,7 +145,11 @@ class Selection
     @deleteSelectedText()
 
   delete: ->
-    @selectRight() if @isEmpty()
+    if @isEmpty()
+      if @cursor.isAtEndOfLine() and fold = @editSession.largestFoldStartingAtScreenRow(@cursor.getCurrentScreenRow() + 1)
+        @selectToBufferPosition(fold.getBufferRange().end)
+      else
+        @selectRight()
     @deleteSelectedText()
 
   deleteToEndOfWord: ->