Quickrun-Shell cannot directly paste previously copied contents

[FusionGold]

Steps to reproduce:

1. Copy the input to the clipboard before running quickrun-shell.
2. Run quickrun-shell on a single C++ file.
3. Press C-y, but the contents are not pasted.
4. Press M-y, can see an empty line above the previously copied input as the most recent entry.
   Only the contents copied immediately after entering 'eshell-quickrun' and while it is awaiting input can be pasted directly. Additionally, the input content copied before starting a new run by pressing 'r' also cannot be directly pasted.