Sorry for my bad english

In my job I have to simulate the outlook style so I configure de reply template as shown in the "Steps to Reproduce"

In the config dialog I check automatically insert signature, insert signature above quoted text, prepend separator to signature and reply or forward using HTML if present. I do this to reply above the previous messages.

I configure my signature as a HTML image and when I reply a mail, my signature replaces all the images in the previous messages.

To fix it I cut the image in half and configure my signature with two images, one above the other. With this all previos images are preserved

Reproducible: Always

Steps to Reproduce:
1.Configure the composer as follows:
check "automatically insert signature", "insert signature above quoted text", "prepend separator to signature" and "reply or forward using HTML if present"
2.Configure the signature as a image
3.Configure the reply template as follows:
%FORCEDHTML
%CURSOR
---------------------------------------------------------------------------------------------------------------------------<b>De:</b> %OFROMADDR
<b>Enviado el:</b> %ODATE %OTIME
<b>Para:</b> %OTOADDR
<b>CC:</b> %OADDRESSEESADDR
<b>Asunto:</b> %OFULLSUBJECT
%TEXT
4. Reply an HTML mail with images
Actual Results:  
You will see your signature replacing all the previos images, images sent by other people like their signature.

Expected Results:  
Not replace the images with the signature image.

In the URL field I share a file where you can see what is happening, these HTML files were saved with the composer, Message, save as File menu option.

Thanks a lot :)