[$40]Challenge Details: Checkpoints tab not displayed

[SathyaJayabal]

Challenge Details: Checkpoints tab not displayed for design challenges with checkpoint phase
Examples:
Dev backend:
V5 URL: https://test-community-app.topcoder-dev.com/challenges/4bccb4bb-b0a1-4046-8da0-69e4027fbc1a
V4 URL: https://qa-community-app.topcoder-dev.com/challenges/30021775
Prod backend
V5 URL:https://beta-community-app.topcoder.com/challenges/6b29e50f-fe49-47a8-a949-f96a00c22448
V4 URL: https://www.topcoder.com/challenges/30126386

[crazyk07]

Contest https://www.topcoder.com/challenges/30129402 has been created for this ticket.

This is an automated message for crazyk via Topcoder X

[crazyk07]

Contest https://www.topcoder.com/challenges/30129402 has been updated - it has been assigned to PkDurlabhji.

This is an automated message for crazyk via Topcoder X

[PrakashDurlabhji]

@sushilshinde I anaylzed well.

there is no checkpoints array present in v5 urls

https://api.topcoder.com/v5/challenges/6b29e50f-fe49-47a8-a949-f96a00c22448?
http://api.topcoder-dev.com/v5/challenges?legacyId=30021775

whereas available in v4
http://api.topcoder-dev.com/v4/challenges/30021775

hence it fails because a check is applied at checkpoints tab