Regression in 2f9861d8.

Thanks Carel Burger for the report and fix.

Use decode() since Popen.communicate() always returns bytes.

Unused since its introduction in 7fca4416.

Regression in aadd3aeb.

Fixed #29036 -- Fixed HTML5 required validation on SelectDateWidget if the attribute is added by JavaScript.

Thanks Tim Graham for the initial patch.

Fixed #29076 -- Made Model.refresh_from_db() clear cached relationships even if the related id doesn't change.

Regression in f9844f48.

Thanks Matthias Kestenholz for the report and suggestions.

Made GEOSGeometryBase hashable.
Regression in 19b2dfd1.

Thanks Tim Graham for the review.

LRU culling turns every read into a kind of write to the cache: cache keys
are moved to the first position in the OrderedDict when they are retrieved.
The RWLock which permitted multiple readers while prioritizing a single
writer is obsolete since all accesses are now writes.

Regression in e2d6e146.