An exception is thrown when FileStorage is used and one experiment is not completed. That happens because the code tries to access the key "stop_time" which does not exist.
Coverage increased (+0.02%) to 77.725% when pulling e89dd440466d89e16906447f5c4091e15c713e10 on akretz:fs_fix into 4f4ebb02b5a2a91e2de07da431979c3120c76903 on chovanecm:develop.
An exception is thrown when FileStorage is used and one experiment is not completed. That happens because the code tries to access the key "stop_time" which does not exist.