[syslog-ng] new build of syslog-ng 3.13.2 has new dependencies

[Evan Rempel]

The copr repo at

https://copr-be.cloud.fedoraproject.org/results/czanik/syslog-ng313/epel-7-$basearch/

has a new build of syslog-ng. The actual version of syslog-ng has not changed, just the build.
The package has gone from version 3.13.2-1 to  3.13.2-2 and new dependencies have been added.
Specifically the 4 below

--> Processing Dependency: libmongoc-1.0.so.0(LIBMONGOC_1.0)(64bit) for package: syslog-ng-3.13.2-2.el7.centos.x86_64
--> Processing Dependency: libbson-1.0.so.0(LIBBSON_1.0)(64bit) for package: syslog-ng-3.13.2-2.el7.centos.x86_64
--> Processing Dependency: libmongoc-1.0.so.0()(64bit) for package: syslog-ng-3.13.2-2.el7.centos.x86_64
--> Processing Dependency: libbson-1.0.so.0()(64bit) for package: syslog-ng-3.13.2-2.el7.centos.x86_64

Since the version of syslog-ng has not changed, how come the dependencies have changed?

Is this a mistake and these dependencies are not actually needed?

I ask because I am running the package 3.13.2-1 and not having any difficulties (I am not using the mondo module).

If the dependencies are not required, can they be removed and a new build created?

-- 
Evan Rempel