[CP #1606 > support/v5.13] [core] send frequency calculation fixed in case of unconnected publisher

[eclipse-ecal-bot]

Cherry-pick failed

Cherry-picked PR #1606 to branch support/v5.13.
The cherry-pick has failed.

The following files have caused conflicts:

ecal/core/src/readwrite/ecal_writer.cpp

Resolving

Please resolve conflicts manually. You can use this PR and branch to your convenience.

git fetch origin
git checkout -b local/cherry-pick/526ef8a/support/v5.13 origin/support/v5.13
git branch -u origin/cherry-pick/526ef8a/support/v5.13
git cherry-pick 410aae069cfb383af295c51ddbf6999cf5544539..526ef8ac236198f801bbcb24296fb67aa883ff7b

# Resolve conflicts and use
#     git cherry-pick --continue
# until all conflicts are resolved.

git push -f origin HEAD:cherry-pick/526ef8a/support/v5.13

After resolving all conflicts, rebase-merge this PR.

[KerstinKeller]

Fixed with #1608.