Constant ADD_BLOCKED_BYS 

pub const ADD_BLOCKED_BYS: &str = "mutation($block0:AddBlockedByInput!,$send0:Boolean!,$block1:AddBlockedByInput!,$send1:Boolean!,$block2:AddBlockedByInput!,$send2:Boolean!,$block3:AddBlockedByInput!,$send3:Boolean!,$block4:AddBlockedByInput!,$send4:Boolean!,$block5:AddBlockedByInput!,$send5:Boolean!,$block6:AddBlockedByInput!,$send6:Boolean!,$block7:AddBlockedByInput!,$send7:Boolean!,$block8:AddBlockedByInput!,$send8:Boolean!,$block9:AddBlockedByInput!,$send9:Boolean!,$block10:AddBlockedByInput!,$send10:Boolean!,$block11:AddBlockedByInput!,$send11:Boolean!,$block12:AddBlockedByInput!,$send12:Boolean!,$block13:AddBlockedByInput!,$send13:Boolean!,$block14:AddBlockedByInput!,$send14:Boolean!,$block15:AddBlockedByInput!,$send15:Boolean!,$block16:AddBlockedByInput!,$send16:Boolean!,$block17:AddBlockedByInput!,$send17:Boolean!,$block18:AddBlockedByInput!,$send18:Boolean!,){ block0:addBlockedBy(input:$block0) @include(if:$send0){issue{id} blockingIssue{id}} block1:addBlockedBy(input:$block1) @include(if:$send1){issue{id} blockingIssue{id}} block2:addBlockedBy(input:$block2) @include(if:$send2){issue{id} blockingIssue{id}} block3:addBlockedBy(input:$block3) @include(if:$send3){issue{id} blockingIssue{id}} block4:addBlockedBy(input:$block4) @include(if:$send4){issue{id} blockingIssue{id}} block5:addBlockedBy(input:$block5) @include(if:$send5){issue{id} blockingIssue{id}} block6:addBlockedBy(input:$block6) @include(if:$send6){issue{id} blockingIssue{id}} block7:addBlockedBy(input:$block7) @include(if:$send7){issue{id} blockingIssue{id}} block8:addBlockedBy(input:$block8) @include(if:$send8){issue{id} blockingIssue{id}} block9:addBlockedBy(input:$block9) @include(if:$send9){issue{id} blockingIssue{id}} block10:addBlockedBy(input:$block10) @include(if:$send10){issue{id} blockingIssue{id}} block11:addBlockedBy(input:$block11) @include(if:$send11){issue{id} blockingIssue{id}} block12:addBlockedBy(input:$block12) @include(if:$send12){issue{id} blockingIssue{id}} block13:addBlockedBy(input:$block13) @include(if:$send13){issue{id} blockingIssue{id}} block14:addBlockedBy(input:$block14) @include(if:$send14){issue{id} blockingIssue{id}} block15:addBlockedBy(input:$block15) @include(if:$send15){issue{id} blockingIssue{id}} block16:addBlockedBy(input:$block16) @include(if:$send16){issue{id} blockingIssue{id}} block17:addBlockedBy(input:$block17) @include(if:$send17){issue{id} blockingIssue{id}} block18:addBlockedBy(input:$block18) @include(if:$send18){issue{id} blockingIssue{id}}}";

Up to WRITE_BATCH native blocked-by relationships a copy adds to the issues it created, in one request.