Description of problem:
sagemath requires only /usr/bin/lua, but scriptlet failes due missing posix package. so additional dependency is needed - lua-posix

Version-Release number of selected component (if applicable):


How reproducible:


Steps to Reproduce:
1. dnf install sagemath
2. check output
3. dnf install lua{,=posix}
4. dnf install sagemath
5. check output

Actual results:
step 2:
....
Total                                                                                                                                                                       2.9 MB/s | 640 MB     03:42     
Running transaction check
Error: transaction check vs depsolve:
/usr/bin/lua is needed by sagemath-8.0-2.fc28.x86_64
To diagnose the problem, try running: 'rpm -Va --nofiles --nodigest'.
You probably have corrupted RPMDB, running 'rpm --rebuilddb' might fix the issue.
The downloaded packages were saved in cache until the next successful transaction.
You can remove cached packages by executing 'dnf clean packages'.



Expected results:

dnf install sagemath passed for first time

Additional info: