I don't believe so. The only change would be if the command I used below permanently re set yum to include the development repros. Is it possible to check?
yum update e-smith-email smeserver-fetchmail --enablerepo=smetest,smeupdates-testing
No it doesn't.
But personally I usually only use 'install' so I don't get confused with a more general 'update' on the wrong repos.
I do note that when testing I got this - I didn't have smeserver-fretchmail installed on my test VM:
yum update e-smith-email smeserver-fetchmail --enablerepo=smetest,smeupdates-testing
Package(s) smeserver-fetchmail available, but not installed.
Resolving Dependencies
--> Running transaction check
---> Package e-smith-email.noarch 0:5.6.0-17.el7.sme will be updated
---> Package e-smith-email.noarch 0:5.6.0-19.el7.sme will be an update
--> Finished Dependency Resolution
yum install e-smith-email smeserver-fetchmail --enablerepo=smetest,smeupdates-testing
Resolving Dependencies
--> Running transaction check
---> Package e-smith-email.noarch 0:5.6.0-17.el7.sme will be updated
---> Package e-smith-email.noarch 0:5.6.0-19.el7.sme will be an update
---> Package smeserver-fetchmail.noarch 0:1.6-24.el7.sme will be installed
--> Finished Dependency Resolution
As I mentioned, just be
very careful with 'update'. And check the packages that it wants to install and be absolutely sure they are what you want.
Avoid smedev unless you are talking to us directly and we specifically ask you to use a package.