I've just submitted the following nasty little bug in ZCS 6.0.1 OSS which is causing one of my users to lose his mind with frustration -- not to mention threaten me with bodily harm.
Bug #41384: Changing signature collapses all whitespace in message
Here's what happens: Start a new message in a separate window in the web client. Assign a signature. Type the message. Change your mind and change to a different signature. Whammo! All the whitespace in your message disappears.
Weeping and gnashing of teeth guaranteed!