When creating tasks with same name in different topics, one is replaced by another

[kolayne]

I am not familiar with the teacher's UI of MathBattle (I would be able to describe the issue in more detail if I could have my own sandbox, see #41), but it seems like when a teacher creates two different tasks with the same name in two different topics, they merge into one task displayed on both topics. I'm pretty sure it's not the expected behavior. I guess the architecture of the project is such that tasks and topics are separate from each other and topics are just groups of tasks that don't acquire them, so the same task can be added to multiple topics. If I'm correct, I think the best solution is to display an error for a teacher that the task with the name he/she is trying to add already exists. If I misunderstood the architecture and two tasks with the same name should be able to coexist, then it should be resolved by just preventing two tasks from merging.

[CoffeBee]

Thank you for submitting issues. The problem not in architecture of date stored in the MathBattle. It's problem of routing, we route tasks by them names, but not by their entries in themes. We work on it.

[kolayne]

(Didn't open a new issue, because I think the problem is close enough with this to be described within the same issue. Tell me if I'm wrong)

When I am on a topic page and open a task (i.e. go to task page), I want to have a link/button for bringing me back to the topic page I came from. I noticed you have a path on the top of pages, which updates each time I go somewhere and each element of the path is a link to a page I could want to return to. But when I open a task, the path seems to break (?). My root remains the same ("Темы"), but its child is updated (the topic name is replaced with "Задачи") (however, it shouldn't because I kept going deeper to the website, I didn't go back), which is not a link at all