Trimmed body display format can result in faulty and chopped off HTML if "Correct faulty and chopped off HTML" is not activated on the text format

Hi,

I am getting the lots of jquery error, So It would break all the jquery functionality in that page.

Steps to reproduce the issue :

1. Set Body field format as Trimmed with limit (100 char) in Teaser mode
2. Create article node with tag in body field
for example :
<p><em>Globally myocardinate orthogonal communities through frictionless leadership skills. Completely engage client-based customer service and cross-platform human capital. Professionally generate vertical web-readiness rather than magnetic data. Distinctively target optimal infomediaries via synergistic products. Interactively develop vertical manufactured products and highly efficient niche markets.</em></p>
Add these in the body field. and save the node.
3. Then see the article node in teaser mode, you would see the jquery errors.

Before patch - italics apply to the rest of the page:

After patch - italics are correctly clipped at the end of the summary: