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authorPeter Andersen <peter@porksmash.com>2019-12-09 08:54:40 -0800
committerMariusz Felisiak <felisiak.mariusz@gmail.com>2019-12-11 09:37:34 +0100
commit74e14541137d444b01fa947d7408f9d4a049ad9d (patch)
tree471926cdb1344b0275c19fae72c69766c411519e /django
parent314cb3a976ef642b8b941a47da90d0277eaa0038 (diff)
[3.0.x] Fixed #31073 -- Prevented CheckboxInput.get_context() from mutating attrs.
Backport of 02eff7ef60466da108b1a33f1e4dc01eec45c99d from master
Diffstat (limited to 'django')
-rw-r--r--django/forms/widgets.py4
1 files changed, 1 insertions, 3 deletions
diff --git a/django/forms/widgets.py b/django/forms/widgets.py
index ba8346ac97..1976c201a9 100644
--- a/django/forms/widgets.py
+++ b/django/forms/widgets.py
@@ -522,9 +522,7 @@ class CheckboxInput(Input):
def get_context(self, name, value, attrs):
if self.check_test(value):
- if attrs is None:
- attrs = {}
- attrs['checked'] = True
+ attrs = {**(attrs or {}), 'checked': True}
return super().get_context(name, value, attrs)
def value_from_datadict(self, data, files, name):