cunked transfert-Encoding without content length

Since the curl version 7.58, the chunked Transfer-Encoding response that contains a negative content length are considered as invalid.
These kinds of message seem correct to me (cf https://en.wikipedia.org/wiki/Chunked_transfer_encoding?oldid=430331176) and I may considering this as a regression from curl.

Actually I have to specify the option CURLOPT_IGNORE_CONTENT_LENGTH, to maintain the curl integration in my code to communicate with our legacy server.
Is there any ways to adapt this behavior in the file http.c, to not take in account a negative content length in case of chunked response?

Thanks for your lights
Regards

Denis
[Thales]

Denis GENESTIER
INGENIEUR COMPOSANTS LOGICIEL
Tel.: +33 (0) 1 73 32 19 51
Fax: +33 (0)1 73 32 16 95

THALES
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