[#676] fix drep/info SQL error

Signed-off-by: jankun4 <michaljankun@gmail.com>

CHANGELOG.md

@@ -48,6 +48,7 @@ changes.
 
 ### Fixed
 
+- drep/info no longer returns 500 [Issue 676](https://github.com/IntersectMBO/govtool/issues/676)
 - proposal/list search is case insensitive now [Issue 582](https://github.com/IntersectMBO/govtool/issues/582)
 - proposal/list now takes optional `search` query param [Issue 566](https://github.com/IntersectMBO/govtool/issues/566)
 - Fix possible sql error when there would be no predefined drep voting pwoer [Issue 501](https://github.com/IntersectMBO/govtool/issues/501)

govtool/backend/sql/get-drep-info.sql

@@ -5,7 +5,7 @@ WITH DRepId AS (
 LatestRegistrationEntry AS (
     SELECT
         drep_registration.voting_anchor_id AS voting_anchor_id,
-        deposit AS deposit
+        drep_registration.deposit AS deposit,
         tx.hash as tx_hash
     FROM
         drep_registration
@@ -98,7 +98,7 @@ SELECT
     CurrentMetadata.url,
     CurrentMetadata.data_hash,
     CurrentVotingPower.amount,
-    LatestRegistrationEntry.tx_hash
+    encode(LatestRegistrationEntry.tx_hash, 'hex') as tx_hash
 FROM
     IsRegisteredAsDRep
     CROSS JOIN IsRegisteredAsSoleVoter
@@ -107,3 +107,4 @@ FROM
     CROSS JOIN CurrentDeposit
     CROSS JOIN CurrentMetadata
     CROSS JOIN CurrentVotingPower
+    CROSS JOIN LatestRegistrationEntry