Edited Issue: Drag & drop in solution explorer deletes target file without moving the source [1498]

My project has the following:

```
\Source\JavaScript1.js:
// this is the source

\Target\JavaScript1.js:
// this is the target
```

Drag & drop `\Source\JavaScript1.js` on top of `\Target\JavaScript1.js` and you'll be prompted to overwrite.
Click Yes.

What's going to happen is that the source file remains where it was, but the target file is deleted.