- Fixed an issue in baked queries where the .get() method, used either

- Fixed an issue in baked queries where the .get() method, used either
directly or within lazy loads, didn't consider the mapper's "get clause"
as part of the cache key, causing bound parameter mismatches if the
clause got re-generated.  This clause is cached by mappers
on the fly but in highly concurrent scenarios may be generated more
than once when first accessed.
fixes #3597

(cherry picked from commit b0308a7b3af91cc61fbe3347376024ad8b7be019)