Multiple instances in scope; for example, see here.
Evidently, the imports being done is not name specific, but this is not the best implementation cause this could lead to polluting the symbol namespace.
QA, albeit, this could lead to the potential pollution of the symbol namespace and a slower compilation speed.
Consider using import declarations of the form import {<identifier_name>} from "some/file.sol" which avoids polluting the symbol namespace making flattened files smaller, and speeds up compilation (but does not save any gas).
