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layer at (0,0) size 800x600
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    RenderBody {BODY} at (8,8) size 784x584
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        RenderText {#text} at (0,0) size 647x17
          text run at (0,0) width 504: "This tests for a hang when pasting underlined content at the end of a paragraph. "
          text run at (504,0) width 143: "You should see 'Hello "
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          RenderText {#text} at (646,0) size 45x17
            text run at (646,0) width 45: "World!"
        RenderText {#text} at (690,0) size 50x17
          text run at (690,0) width 50: "' below."
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          RenderText {#text} at (0,0) size 39x17
            text run at (0,0) width 39: "Hello "
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            RenderText {#text} at (39,0) size 44x17
              text run at (39,0) width 44: "World!"
        RenderBlock (anonymous) at (0,18) size 784x0
caret: position 6 of child 0 {#text} of child 1 {SPAN} of child 0 {DIV} of child 2 {DIV} of body