fcoll/vulcan: fix memory leak - v4.1.x#12810

jsquyres merged 1 commit intoopen-mpi:v4.1.xopen-mpi/ompi:v4.1.xfrom

edgargabriel:pr/vulcan-aggr-list-leak-v4.1.xedgargabriel/ompi:pr/vulcan-aggr-list-leak-v4.1.xCopy head branch name to clipboard