Always mutate selections in order

spec/text-editor-spec.coffee

@@ -2730,6 +2730,20 @@ describe "TextEditor", ->
 
             """
 
+        describe "when many selections get added in shuffle order", ->
+          it "cuts them in order", ->
+            editor.setSelectedBufferRanges([
+              [[2,8], [2, 13]]
+              [[0,4], [0,13]],
+              [[1,6], [1, 10]],
+            ])
+            editor.cutSelectedText()
+            expect(atom.clipboard.read()).toEqual """
+              quicksort
+              sort
+              items
+            """
+
       describe ".cutToEndOfLine()", ->
         describe "when soft wrap is on", ->
           it "cuts up to the end of the line", ->
@@ -2900,8 +2914,12 @@ describe "TextEditor", ->
             editor.setSelectedBufferRanges([[[0, 4], [0, 13]], [[1, 6], [1, 10]]])
             editor.copySelectedText()
 
-          it "pastes each selection separately into the buffer", ->
-            editor.copySelectedText()
+          it "pastes each selection in order separately into the buffer", ->
+            editor.setSelectedBufferRanges([
+              [[1, 6], [1, 10]]
+              [[0, 4], [0, 13]],
+            ])
+
             editor.moveRight()
             editor.insertText("_")
             editor.pasteText()

src/text-editor.coffee

@@ -843,7 +843,7 @@ class TextEditor extends Model
   mutateSelectedText: (fn) ->
     @mergeIntersectingSelections =>
       @transact =>
-        fn(selection, index) for selection, index in @getSelections()
+        fn(selection, index) for selection, index in @getSelectionsOrderedByBufferPosition()
 
   # Move lines intersection the most recent selection up by one row in screen
   # coordinates.