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-rw-r--r--lib/kernel/src/pg2.erl4
1 files changed, 3 insertions, 1 deletions
diff --git a/lib/kernel/src/pg2.erl b/lib/kernel/src/pg2.erl
index cb9fec2ffe..956a900adc 100644
--- a/lib/kernel/src/pg2.erl
+++ b/lib/kernel/src/pg2.erl
@@ -251,7 +251,9 @@ terminate(_Reason, _S) ->
%%% Pid is a member of group Name.
store(List) ->
- _ = [assure_group(Name) andalso [join_group(Name, P) || P <- Members] ||
+ _ = [(assure_group(Name)
+ andalso
+ [join_group(Name, P) || P <- Members -- group_members(Name)]) ||
[Name, Members] <- List],
ok.