DisplayBuffer.destroyFoldsContainingBufferRow destroys all folds containing buffer row (instead of just folds starting at buffer row)

src/app/display-buffer.coffee

@@ -108,8 +108,9 @@ class DisplayBuffer
       @trigger 'change', oldRange: oldScreenRange, newRange: newScreenRange, lineNumbersChanged: true
 
   destroyFoldsContainingBufferRow: (bufferRow) ->
-    folds = @activeFolds[bufferRow] ? []
-    fold.destroy() for fold in new Array(folds...)
+    for row, folds of @activeFolds
+      for fold in new Array(folds...)
+        fold.destroy() if fold.getBufferRange().containsRow(bufferRow)
 
   registerFold: (fold) ->
     @activeFolds[fold.startRow] ?= []

src/app/range.coffee

@@ -50,6 +50,9 @@ class Range
     point = Point.fromObject(point)
     point.isGreaterThanOrEqual(@start) and point.isLessThanOrEqual(@end)
 
+  containsRow: (row) ->
+    @start.row <= row <= @end.row
+
   union: (otherRange) ->
     start = if @start.isLessThan(otherRange.start) then @start else otherRange.start
     end = if @end.isGreaterThan(otherRange.end) then @end else otherRange.end