fix hookspec parsing

src/_pytest/config/__init__.py

@@ -268,10 +268,10 @@ class PytestPluginManager(PluginManager):
         # collect unmarked hooks as long as they have the `pytest_' prefix
         if opts is None and name.startswith("pytest_"):
             opts = {}
-
         if opts is not None:
             # TODO: DeprecationWarning, people should use hookimpl
             known_marks = {m.name for m in getattr(method, "pytestmark", [])}
+
             for name in ("tryfirst", "trylast", "optionalhook", "hookwrapper"):
 
                 opts.setdefault(name, hasattr(method, name) or name in known_marks)
@@ -283,10 +283,15 @@ class PytestPluginManager(PluginManager):
         )
         if opts is None:
             method = getattr(module_or_class, name)
+
             if name.startswith("pytest_"):
+                # todo: deprecate hookspec hacks
+                known_marks = {m.name for m in getattr(method, "pytestmark", [])}
                 opts = {
-                    "firstresult": hasattr(method, "firstresult"),
-                    "historic": hasattr(method, "historic"),
+                    "firstresult": hasattr(method, "firstresult")
+                    or "firstresult" in known_marks,
+                    "historic": hasattr(method, "historic")
+                    or "historic" in known_marks,
                 }
         return opts