The crash mentioned above was seen by @ashishgoswami on Dgraph v20.07.0-beta.Jun22 and it was fixed in dgraph Dgraph v20.07.0-rc1.
The following was the fix for the crash in badger
https://github.com/dgraph-io/badger/commit/e013bfd25899ec014d7117fa6e94b17a114d9921
I had a chat with @Paras and @ashishgoswami and the next step is to do the same test on the v20.07.0 binary.