Editor: Rename of asset can lead to crash

## Description

Rename of asset can lead to crash

## Prerequisites

Create a directory structure with at least to levels.
Materials/Custom

## Steps to Reproduce

1. Create a Material in Custom directory
2. Change name of the Material to another one

### Expected behavior:

2. Name changed

### Actual behavior:

2. Application crashed

### Reproducibility:

100%

## Versions

2026.1
