virtualhost related config is getting ignored

[artakami]

Apache supports multitenant environments. each virtual domain can have its own custom settings for each module. this is done by including module specific settings into <ifmodule [modulename]>
log_gelf_module is not accepting "per-virtualhost" configs.

Scenario:
**mod_log_gelf is configured **
/etc/httpd/conf.modules.d/02-gelf.conf

LoadModule log_gelf_module /usr/lib64/httpd/modules/mod_log_gelf.so
GelfEnabled On
GelfUrl "udp://172.21.0.4:12201"
GelfSource "gadgetshop.am"
GelfFacility "apache-gelf"
GelfTag "apache_all"
GelfCookie "tracking"
GelfFields "ABDhImsvRti"

mod_log_gelf is enabled

[root@vps-a ~]# apachectl -M | grep gelf
log_gelf_module (shared)
[root@vps-a ~]#

Virtualhost is configured with log_gelf_module settings

<VirtualHost *:80>
ServerName www.myserver.am
...

GelfEnabled On
GelfUrl "udp://172.21.0.4:12201"
GelfSource "gadgetshop.am"
GelfFacility "apache-gelf"
GelfTag "apache_nossl"
GelfCookie "tracking"
GelfFields "ABDhImsvRti"g

Issus:
only logs with "apache_all" tag are getting forwarded to GrayLog