Can not deactivate

[zhuguowei@ecs-299060 ~]$ conda -V
conda 22.9.0
[zhuguowei@ecs-299060 ~]$ conda info --envs

conda environments:

base /data/anaconda3
paddlenlp /data/anaconda3/envs/paddlenlp
foo /home/zhuguowei/.conda/envs/foo
ocr /home/zhuguowei/.conda/envs/ocr

[zhuguowei@ecs-299060 ~]$ conda activate foo
(foo)
(foo) python
Python 3.8.13 (default, Oct 21 2022, 23:50:54)
[GCC 11.2.0] :: Anaconda, Inc. on linux
Type “help”, “copyright”, “credits” or “license” for more information.

KeyboardInterrupt

(foo) conda deactivate

^C

When execute conda deactivate command, it blocks here , why is so ? how can I deactivate it?