Fix SpellPaletteView's popover Ace

app/views/play/level/tome/SpellPaletteEntryView.coffee

@@ -47,22 +47,29 @@ module.exports = class SpellPaletteEntryView extends CocoView
       Backbone.Mediator.publish 'tome:palette-hovered', thang: @thang, prop: @doc.name, entry: @
       soundIndex = Math.floor(Math.random() * 4)
       @playSound "spell-palette-entry-open-#{soundIndex}", 0.75
-      popover = @$el.data('bs.popover')
-      popover?.$tip?.i18n()
-      codeLanguage = @options.language
-      oldEditor.destroy() for oldEditor in @aceEditors
-      @aceEditors = []
-      aceEditors = @aceEditors
-      # Initialize Ace for each popover code snippet
-      popover?.$tip?.find('.docs-ace').each ->
-        aceEditor = utils.initializeACE @, codeLanguage
-        aceEditors.push aceEditor
+      @afterRenderPopover()
 
-  onMouseEnter: (e) ->
-    # Make sure the doc has the updated Thang so it can regenerate its prop value
+  # NOTE: This can't be run twice without resetting the popover content HTML
+  #       in between. If you do, Ace will break.
+  afterRenderPopover: ->
+    popover = @$el.data('bs.popover')
+    popover?.$tip?.i18n()
+    codeLanguage = @options.language
+    oldEditor.destroy() for oldEditor in @aceEditors
+    @aceEditors = []
+    aceEditors = @aceEditors
+    # Initialize Ace for each popover code snippet that still needs it
+    popover?.$tip?.find('.docs-ace').each ->
+      aceEditor = utils.initializeACE @, codeLanguage
+      aceEditors.push aceEditor
+
+  resetPopoverContent: ->
     @$el.data('bs.popover').options.content = @docFormatter.formatPopover()
     @$el.popover('setContent')
-    @$el.popover 'show' unless @popoverPinned or @otherPopoverPinned
+
+  onMouseEnter: (e) ->
+    @resetPopoverContent()
+    @$el.popover 'show'
 
   onMouseLeave: (e) ->
     @$el.popover 'hide' unless @popoverPinned or @otherPopoverPinned
@@ -76,8 +83,9 @@ module.exports = class SpellPaletteEntryView extends CocoView
       @playSound 'spell-palette-entry-unpin'
     else
       @popoverPinned = true
-      @$el.popover 'show'
+      @resetPopoverContent()
       @$el.add('.spell-palette-popover.popover').addClass 'pinned'
+      @$el.popover 'show'
       x = $('<button type="button" data-dismiss="modal" aria-hidden="true" class="close">×</button>')
       $('.spell-palette-popover.popover').append x
       x.on 'click', @onClick