The tag is present in Lintian version 2.109.24. That is the most recent version we know about.
A vertical bar &vert (also known as a pipe symbol) does not stand for
a logical OR relationship in
To describe dual licensing, please use the word "or" between license names.
Please refer to https://www.debian.org/doc/packaging-manuals/copyright-format/1.0/ for details.