Create a sub-task, set the summary based on the parent's component, and set the assignee to the current user.
Choose Single issue.
Choose Selected issue type and Sub-task as its value.
The issue type to be created is being set to Sub-task.
The issue type must be present in your system.
Select current issue.
The Sub-task will be created under the current issue.
Insert the following expression:
Sub-task related to %{issue.components}
A generic summary indicating that the sub-task relates to the parent component.
Select Assignee.
In the popup field:
Set the Value* to set field value manually (parser expression) and insert the following expression:
%{system.currentUser}
The assignee will be set to the current user.
Choose which user* will be able to execute the post function. By default, it is set to the Current user.