Inconsistency in WATCH command between Redis and redis-py

[mdczaplicki]

Thanks for wanting to report an issue you've found in redis-py. Please delete this text and fill in the template below.
It is of course not always possible to reduce your code to a small test case, but it's highly appreciated to have as much data as possible. Thank you!

Version: What redis-py and what redis version is the issue happening on?
redis-py: 5.0.0
redis: 6.2.0
Platform: What platform / version? (For example Python 3.5.1 on Windows 7 / Ubuntu 15.10 / Azure)
python3.11 on Ubuntu
Description: Description of your issue, stack traces from errors and code that reproduces the issue
This is how Redis works:

>> SET a 2
"OK"
>> WATCH a
"OK"
>> SET a 3
"OK"
>> MULTI
"OK"
>> SET a 4
"QUEUED"
>> EXEC
(nil)
>> GET a
"3"

As expected.
This is how redis-py works:

In [19]: await redis.set("a", 1)
    ...: await redis.watch("a")
    ...: a = await redis.get("a")
    ...: await redis.set("a", 2)
    ...: async with redis.pipeline() as pipeline:
    ...:     pipeline.multi()
    ...:     await pipeline.set("a", 3)
    ...:     await pipeline.execute()
    ...: 

In [20]: await redis.get("a")
Out[20]: '3'

It will work however if we add WATCH to the pipeline.

But I don't want to create a pipeline when getting the value, because I won't always update the value.