bugfix conan 1.x: consider revision for build_requires (#14679)

consider revision for build_requires

conans/client/loader.py

@@ -349,7 +349,7 @@ def load_virtual(self, references, profile_host, scope_options=True,
         conanfile.settings = profile_host.processed_settings.copy_values()
 
         if is_build_require:
-            conanfile.build_requires = [str(r) for r in references]
+            conanfile.build_requires = [r for r in references]
         else:
             for reference in references:
                 conanfile.requires.add_ref(reference)

conans/test/functional/revisions_test.py

@@ -369,6 +369,25 @@ def test_revision_mismatch_packages_remote(self, v1):
             client.run(command, assert_error=True)
             self.assertIn("Can't find a '{}' package".format(self.ref), client.out)
 
+    def test_revision_build_requires(self):
+        conanfile = GenConanfile()
+
+        refs = []
+        for _ in range(1,4): # create different revisions
+            conanfile.with_build_msg("any change to get another rrev")
+            pref = self.c_v2.create(self.ref, conanfile=conanfile)
+            self.c_v2.upload_all(pref.ref)
+            refs.append(pref.ref)
+            assert refs.count(pref.ref) == 1 # make sure that all revisions are different
+
+        client = self.c_v2 # revisions enabled
+        client.remove_all()
+
+        for ref in refs:
+            command = "install --update --build-require {}".format(repr(ref))
+            client.run(command)
+            self.assertIn("Downloaded recipe revision {}".format(ref.revision), client.out)
+
     def test_json_output(self):
         client = TurboTestClient()
         client.save({"conanfile.py": GenConanfile()})