All reports of public-upstream-keys-in-multiple-locations for the archive. The extended description of this tag is:
The source package contains public upstream signing keys (or keyrings) in multiple locations. This situation is potentially confusing for uscan(1) or any other tool hoping to verify the integrity and authenticity of upstream sources.
Please remove all keys (or keyrings) except one at the recommended location debian/upstream/signing-key.asc.
Refer to the uscan(1) manual page for details.
This tag has not been emitted in any package tested by Lintian.