Signature reconginized issue

I had an email come like the following

Quidem est perspiciatis omnis voluptatibus consequatur est et. Impedit occaecati quas voluptatem voluptas dolor eum consequatur.

Assumenda voluptatem tempore dignissimos. Id omnis nisi--ratione omnis qui suscipit.
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Name

Since there is a new line and then a '--' embedded in the sentence, the emails were getting cut short.

Start by reproducing the parser behavior with the email text shown in the issue, then trace where signature detection handles the newline and embedded "--". Done means the email content is no longer cut short in this case; no file or test is identified in the issue.

Written by the indexing model from the issue text.