HPCC-12490 Ensure linked progress is released when connection is

Signed-off-by: Jake Smith <jake.smith@lexisnexis.com>
Merge pull request #6646 from jakesmith/hpcc-12490-4

HPCC-12490 Ensure linked progress is released when connection is

Reviewed-By: Gavin Halliday <gavin.halliday@lexisnexis.com>
Reviewed-By: Richard Chapman <rchapman@hpccsystems.com>
Community Edition 4.2.12-rc5 Release Candidate 5

Signed-off-by: Richard Chapman <rchapman@hpccsystems.com>
Merge branch 'candidate-4.2.12' into candidate-5.0.4

Conflicts:
	version.cmake

Signed-off-by: Richard Chapman <rchapman@hpccsystems.com>