Fix #20763: Match Scheduler.answerCard with upstream Anki

[vivek41-glitch]

Issue

#20763 - NoSuchElementException when cardsList is empty

Root Cause

Scheduler.kt deviated from upstream by using queuedCards.cardsList.first()

Fix

Replace with col.backend.getSchedulingStates(card.id) to match Python implementation

Changes

• Removed invalid queuedCards.first() call
• Now matches upstream behavior exactly
• Prevents NoSuchElementException

Testing

Code matches upstream Anki at commit 5e46fc4494b428387f1d3f5c19d0ed19a089705e

[david-allison]

Cheers!

Please drop the irrelevant commits and the merge commit. Prefer to have multiple commits which we can rebase onto main

https://github.com/ankidroid/Anki-Android/blob/main/CONTRIBUTING.md#before-submitting-a-pull-request-pr

[vivek41-glitch]

hi @david-allison , in my terminal things get messy ,it become overcomplicated from my side . would do it from urself squashing when merging ? i will appreciate
thanks .

[david-allison]

Being able to lint your code, either via our pre-commit hooks, or./gradlew ktLintFormat is a requirement to contribute.

[criticalAY]

You changed the PR template. Please stick to the original template and fill details there

[vivek41-glitch]

You changed the PR template. Please stick to the original template and fill details there

@criticalAY Thank you for the feedback. I apologize for changing the template. I have created a new PR (#21163) with the correct code. Please review that one instead. I will close this PR.

[david-allison]

Please force push rather than creating new pull requests - it's more work for us, and we lose the conversation