If you hover over two templates without having mouse button exit the two templates, then you are unable to interact with either of the templates until you move your mouse out of the templates.
Tested on http://en.wikipedia.beta.wmflabs.org/wiki/User:AzaToth using the code:
{{test|name = "
logo = ' |
"| = | = |logo = }}{{test|name = hello}}
Version: unspecified
Severity: normal