Respect format-preserving options in TextEditor.pasteText

src/text-editor.coffee

@@ -3247,12 +3247,13 @@ class TextEditor extends Model
   # corresponding clipboard selection text.
   #
   # * `options` (optional) See {Selection::insertText}.
-  pasteText: (options={}) ->
+  pasteText: (options) ->
+    options = Object.assign({}, options)
     {text: clipboardText, metadata} = @constructor.clipboard.readWithMetadata()
     return false unless @emitWillInsertTextEvent(clipboardText)
 
     metadata ?= {}
-    options.autoIndent = @shouldAutoIndentOnPaste()
+    options.autoIndent ?= @shouldAutoIndentOnPaste()
 
     @mutateSelectedText (selection, index) =>
       if metadata.selections?.length is @getSelections().length