MEI text highlighting does not work for note ending a tie

[craigsapp]

When clicking on a graphical note when viewing an MEI file, the text for the note should be highlighted. However for a tied note, the tie is being highlighted. This is because the xml:id is searched for in the file, but the tie has an idref with the same string. Include the quotes in the search plus perhaps the "id=" portion to ensure that it is unique.