easy handle / multi handle error with phRETS 1.3

[thinkerytim]

I've been seeing these errors in the phRETS debug log recently, and despite upgrading to phRETS 1.3 they're persisting.

<RETS-RESPONSE>
MemberName=RETS Drebben, Frank
User=Drebben9769
Broker=42,42
MetadataVersion=20.7.10714
MetadataTimestamp=2020-07-07T10:34:53.9Z
MinMetadataTimestamp=2020-07-07T10:34:53.9Z
TimeoutSeconds=5400
GetMetadata=/rets/fnisrets.aspx/GACARMLS/getmetadata
GetObject=/rets/fnisrets.aspx/GACARMLS/getobject
Login=http://gacarmls-rets.paragonrels.com/rets/fnisrets.aspx/GACARMLS/login
Logout=/rets/fnisrets.aspx/GACARMLS/logout
Search=/rets/fnisrets.aspx/GACARMLS/search
</RETS-RESPONSE>
</RETS>

* easy handle already used in multi handle

* easy handle already used in multi handle

* easy handle already used in multi handle

* easy handle already used in multi handle

Any request after the login results in RETS error in getResources: -1 : XML parsing error. No data to parse It appears to be related to a cPanel upgrade a host had made. The version of curl is:

# php -r 'echo curl_version()["version"];'
7.69.1

Is this anything that's a known issue? It sounds as if there was a change to how curl handles work: https://curl.haxx.se/mail/lib-2019-02/0081.html