fix: Ensure the warning is non longer option - older gets migrated#974

aiAdrian wants to merge 3 commits into

mainOpenRailAssociation/netzgrafik-editor-frontend:mainfrom

973-older-netzgrafik-cause-an-warning-issue-when-missing-backward-travel-times-due-of-wrong-warning-checkOpenRailAssociation/netzgrafik-editor-frontend:973-older-netzgrafik-cause-an-warning-issue-when-missing-backward-travel-times-due-of-wrong-warning-checkCopy head branch name to clipboard