I am using the yum module to lock the release version for a RHEL 7.6 machine to 7.7 version. However the yum --releasever option does not set the release version to 7.7. I am using Ansible 2.7.10 version.
Here is the discussion regarding the issue: 
https://access.redhat.com/discussions/4774501

ISSUE TYPE
Bug Report

COMPONENT NAME
yum --releasever

ANSIBLE VERSION
2.7.10 

STEPS TO REPRODUCE
name: installing updated packages
yum:
name: '*'
state: latest
releasever: '7.7'

ACTUAL RESULTS
Play runs successfully however it does not update the release version of the server
try:
            try:
                with open(self.lockfile, 'r') as f:
                    oldpid = int(f.readline())
            except ValueError:
                
                os.unlink(self.lockfile)
                return False
            if oldpid == os.getpid():
                
                os.unlink(self.lockfile)
                return False
            try:
                with open("/proc/%d/stat" % oldpid, 'r') as f:
                    stat = f.readline()
                if stat.split()[2] == 'Z':