Quorum queues: avoid potential crash when returning message. (backport #7827) #7849
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Returns reaching a Ra member that used to be leader but now has stepped down would cause that follower to crash and restart. This commit avoids this scenario as well as giving the return commands a good chance of being resent to the new leader in a timeley manner. (see the Ra release for this). (cherry picked from commit 01f6d0f)
To make sure to get the message. (cherry picked from commit b840200)
(cherry picked from commit cdf4ec5)
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This is an automatic backport of pull request #7827 done by Mergify.
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