In the sshd_config man page DisableForwarding isn't listed as a valid keyword in a match block, but I've found that it is needed if DisableForwarding is set in the main configuration and you want to override it for specific match blocks. I haven't verified that it has the effect I want (enable/disable forwarding for the specific match block, as compared to overriding the global DisableForwarding setting for everything), but either way it should be documented.
thanks - I have committed a fix and it should be in the next release
close bugs that were resolved in OpenSSH 8.5 release cycle