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layer at (0,0) size 800x600
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    RenderBody {BODY} at (8,8) size 784x584
      RenderBlock {P} at (0,0) size 784x20
        RenderText {#text} at (0,0) size 653x19
          text run at (0,0) width 653: "This tests for a bug where hitting return after a line break in text that preserves newlines wouldn't do anything."
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        RenderBlock (anonymous) at (0,0) size 784x40
          RenderText {#text} at (0,0) size 21x19
            text run at (0,0) width 21: "xxx"
            text run at (21,0) width 0: " "
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        RenderBlock {DIV} at (0,40) size 784x20
          RenderText {#text} at (0,0) size 638x19
            text run at (0,0) width 638: "There should be an empty paragraph before this one, and the caret should be at the start of this paragraph."
caret: position 0 of child 0 {#text} of child 2 {DIV} of child 2 {DIV} of body