lmdb: Incorrect hash source

When I tried to add lmdb wrapdb project to an example blank meson project, this error comes out:

meson.build:6:7: ERROR: Incorrect hash for source:
d4c668167a2d703ef91db733b4069b8b74dbc374405855be6626b45e2a7e2dd3 expected
e4d9f32dba4e15fcc66e0085a03432ff40a8065848d352ea47b1cb717e7369a4 actual.

Is there any source update in openLDAP project webpage or incorrectly added to `lmdb.wrapdb` file?

Start by inspecting lmdb.wrapdb and the source reference it records, then compare that source with the expected and actual hashes in the report. Determine whether the upstream openLDAP source changed or the wrap file is wrong; done means the recorded hash matches the intended source and the example no longer reports an incorrect hash.

Written by the indexing model from the issue text.