#246 Previous image's Label appears on New or Opened image

[William Kendrick]

Steps to reproduce:

• Select Label tool, click somewhere in canvas
• Type some text; do not submit it with [Enter] or [Tab] key
• Click New and start a new drawing, or click Open and open an existing one

Expected behavior: The label being edited does not appear in the other picture.
Actual behavior: The label exists (though it is not visible yet, until you interact with it; e.g., hit [Backspace], click somewhere, etc.)

[Pere Pujal i Carabantes]

Yes, the text being edited is not cleared, the attached patch should fix that for open and new, please test.
Pere

[William Kendrick]

Thanks! Also threw "cursor_textwidth = 0;" in there, to get the insertion point cursor to move back to where any new text would appear if you hit New or Open, and then continue to use Label tool.