BigFixMe bug: Won't allow import of relevance containing `<tag>`

Ideas
1

https://bigfix.me/ has a bug where it will not allow you to import the relevance "<tag>" or any similar relevance.

###Steps to reproduce:

  1. visit https://bigfix.me/
  2. Login
  3. Click Share
  4. Click Import Relevance
  5. Enter "<tag>" into the Relevance: textbox
  6. Click Import button
  7. Get ERROR!

BigFixMe_ERROR_HTML.PNG934×130 13 KB

https://bigfix.me/ is detecting this as an unescaped HTML tag and rejecting it, but it should be escaped and imported.

CC: @lattanas