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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 615x19
          text run at (0,0) width 479: "This tests for a hang when pasting underlined content at the end of a paragraph. "
          text run at (479,0) width 136: "You should see 'Hello "
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          RenderText {#text} at (615,0) size 44x19
            text run at (615,0) width 44: "World!"
        RenderText {#text} at (659,0) size 48x19
          text run at (659,0) width 48: "' below."
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        RenderBlock {DIV} at (0,0) size 784x20
          RenderText {#text} at (0,0) size 36x19
            text run at (0,0) width 36: "Hello "
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            RenderText {#text} at (36,0) size 44x19
              text run at (36,0) width 44: "World!"
        RenderBlock (anonymous) at (0,20) size 784x0
caret: position 6 of child 0 {#text} of child 1 {SPAN} of child 0 {DIV} of child 2 {DIV} of body