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layer at (0,0) size 800x600
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        RenderText {#text} at (0,0) size 648x18
          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 144: "You should see 'Hello "
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          RenderText {#text} at (648,0) size 45x18
            text run at (648,0) width 45: "World!"
        RenderText {#text} at (693,0) size 50x18
          text run at (693,0) width 50: "' below."
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            text run at (0,0) width 39: "Hello "
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                text run at (39,0) width 45: "World!"
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caret: position 6 of child 0 {#text} of child 0 {DIV} of child 1 {SPAN} of child 0 {DIV} of child 2 {DIV} of child 0 {BODY} of child 0 {HTML} of document
