Killing LSF jobs while submission is in progress can leave the job running on the cluster.

[berland]

If an ensemble experiment is started, and 'Terminate experiment' is clicked while realizations are being submitted, the following "Error" is displayed to the user:

ert/src/ert/scheduler/lsf_driver.py

Lines 289 to 291 in 401d29f

	if iens not in self._iens2jobid:
	logger.error(f"LSF kill failed due to missing jobid for realization {iens}")
	return

This means that the killing of the realization failed. When the submit() function eventually finished, the realization is likely to be running even if it should have been killed.