[Email] Insert Field into subject fail

[esforim]

1. Used Demo v6
2. Go to any Contact > e.g.Michael Schwarzberger
3. Sidebar > Activities > ... > Compose Email
4. Click on email "Subject" area
5. Click on + (Insert Field)
6. Choose any field (e.g. Email). click on it.
7. Now look at the insert, it is above Subject line. Initially I thought it just visual error but if you try to click send it will get "Error, please include subject". Same issue if you try to do this for To:, CC:, BCC: field.

[yuri]

Reproducible in Firefox but works fine in Chrome. I believe it's an old bug in Summernote library. I will look what I can do with this. Thanks for reporting.