Hash mark link gets replaced with site URL

This might be a silly question, so forgive me if it is but I am still new to Drupal...

I am using this module in conjunction with Simplenews to create/send HTML newsletters. I have created a template for a Progressive Disclosure email newsletter, using the guide here:

http://www.campaignmonitor.com/guides/mobile/responsive/

And using the code referenced here:

https://gist.github.com/egid/5208136

Take note of line 164 in the code, where you have this:

<a href="#" class="mobilehide">Hide</a> <a href="#" class="mobileshow">Show</a>

The href tags aren't pointing anywhere, and they don't need to be. My problem is that Mime Mail appears to be replacing the '#' symbol with the default URL of my website once the email gets sent. So, when the email is sent line 164 gets changed to this:

<a href="http://www.mysite.com" class="mobilehide">Hide</a> <a href="http://www.mysite.com" class="mobileshow">Show</a>

This appears to be a similar problem (but not quite the same) to this thread I found from several years ago:

http://drupal.org/node/161600

But it seems that fix is now included in Mime Mail. My question is, can I have Mime Mail not automatically replace the '#' symbol in those links, and just leave it alone as it was intended?