In v5.0 we began setting the maxTimeMSOpOnly field on internal commands, but ignore it and do not set a deadline on the opCtx for the hello command to avoid interfering with the RSM. In a mixed version cluster, nodes that are on v4.4 do not ignore this field and do set a deadline on the opCtx, causing nodes on v5.0 to see a lot of RSM failures due to MaxTimeMsExpired. We should also ignore this field for the hello command in v4.4.