Fixes clearAuthorities in chainspec when staking genesis is defined (…

…#1711)

* fixes staking chainspec

* Fix nix hash

* Set 'stakingBond' IFF there is at least one

* Trigger Build

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Co-authored-by: gpestana <gpestana@users.noreply.github.com>
Co-authored-by: Javier Viola <javier@parity.io>
Co-authored-by: Javier Viola <363911+pepoviola@users.noreply.github.com>

javascript/packages/orchestrator/src/chainSpec.ts

@@ -74,9 +74,12 @@ export function clearAuthorities(specPath: string) {
     if (runtimeConfig?.collatorSelection)
       runtimeConfig.collatorSelection.invulnerables = [];
 
-    // Clear staking
+    // clear staking
     if (runtimeConfig?.staking) {
-      stakingBond = BigInt(runtimeConfig.staking.stakers[0][2]);
+      // Set `stakingBond` IFF there is at least one
+      if (runtimeConfig.staking.stakers[0])
+        stakingBond = BigInt(runtimeConfig.staking.stakers[0][2]);
+
       runtimeConfig.staking.stakers = [];
       runtimeConfig.staking.invulnerables = [];
       runtimeConfig.staking.validatorCount = 0;