Copy settings bug in IE11

Hi,

Found this issue in IE some time ago, but think I never reported it. Copying a settings set from another set doesn’t work.

After copying the values have not changed, and some special characters are added to library # (displaying in the h2 and various places in the table and in the onclick script)
4©=4
… and some escaped characters in the url
&settings=4%C2%A9%3D4

Trying another copy will double those extra characters.

If I manually create an url to do the copy then it works fine, ie

http://example.com/wp-admin/admin.php?page=link-library-settingssets&settings=4&copy4&source=1

BTW, even before copying the console reports various html tag issues.

Running the latest version of LL and WP, on an old xampp install.

https://wordpress.org/plugins/link-library/