Steps to reproduce the issue

installed Redis 3.2.10 as cache server.
create new custom component with settings in config.xml
installed the custom component.
try to use params,
$params = JComponentHelper::getParams("com_custom_xxx",true);//replace com_custom_xxx as the correct name.
var_dump($params);
change the settings from the custom component default settings page.
again try to use the params, but this time.
the result the $params has no value. (It may has correct values after minutes later, maybe wait for the cache expired)
try to clear all cache from com_cache component page.
try to user the params again.
the params still empty (or the old's values)

Expected result

after try to clean all cache from com_cache component page.
try to use params again, the params should refresh and replace with new changed settings.

Actual result

the clean cache function cannot delete the correct redis cache.

System information (as much as possible)

Joomla 3.9.x
Redis 3.2.10
Php 7.10.x
Centos 7.4
nginx 1.14.2

Additional comments

try to use redis-cli to clean the cache db. the cache refresh immediately.