Allow prerelease versions in marker evaluation

- i.e. make 3.7.0 < 3.13.0rc3 in python_full_version marker

c5f1db976c.patch

@@ -0,0 +1,24 @@
+From c5f1db976c89074e5f18f15b04cfa21132161a73 Mon Sep 17 00:00:00 2001
+From: Thomas Grainger <tagrain@gmail.com>
+Date: Wed, 16 Mar 2022 20:10:30 +0000
+Subject: [PATCH] allow prerelease versions in marker evaluation (#523)
+
+Fixes  #522
+---
+ packaging/markers.py  | 2 +-
+ tests/test_markers.py | 5 +++++
+ 2 files changed, 6 insertions(+), 1 deletion(-)
+
+diff --git a/src/pip/_vendor/packaging/markers.py b/src/pip/_vendor/packaging/markers.py
+index 56d4b240..39905148 100644
+--- a/src/pip/_vendor/packaging/markers.py
++++ b/src/pip/_vendor/packaging/markers.py
+@@ -192,7 +192,7 @@ def _eval_op(lhs: str, op: Op, rhs: str) -> bool:
+     except InvalidSpecifier:
+         pass
+     else:
+-        return spec.contains(lhs)
++        return spec.contains(lhs, prereleases=True)
+ 
+     oper: Optional[Operator] = _operators.get(op.serialize())
+     if oper is None:

python-pip.spec

@@ -82,6 +82,12 @@ Patch:          nowarn-pip._internal.main.patch
 # Upstream issue: https://github.com/pypa/packaging/issues/368
 Patch:          no-version-warning.patch
 
+# Allow prerelease versions in marker evaluation (from packaging 22+)
+# i.e. make 3.7.0 < 3.13.0rc3 in python_full_version marker
+# https://github.com/pypa/packaging/commit/c5f1db976c
+# Manually edited to apply to src/pip/_vendor/packaging
+Patch:          c5f1db976c.patch
+
 %description
 pip is a package management system used to install and manage software packages
 written in Python. Many packages can be found in the Python Package Index