Custom Headers on TsgcHTTP2Client

Hello Sergio,
using the TsgcHTTP2Client component I encountered another anomaly.
If I insert custom headers to the request, on the server side, they appear with a key value formed by the concatenation of key-value pairs.
Example
FClient_Request.Request.CustomHeaders.AddPair('action','fetchaction');
FClient_Request.Request.CustomHeaders.Add('enviroment=signature');

On the server side I will have:
Headers[x] = 'enviroment=signature=enviroment=signature'
Headers[y] = 'action=fetchaction=action=fetchaction'
I'm waiting for your response
Thank you