desktop find file bug

[DaBaiTuuu]

Describe the bug
when i search a wrong hash in desktop then behave the file-window stucks.

To Reproduce
Steps to reproduce the behavior:
1.give a wrong hash，which means the file didnt exist
2.click browse
3 it's always show a finding flash

Expected behavior
even show file didn't exist

Screenshots

Desktop (please complete the following information):

• windows pc
• Browser [chrome]
• Version [69cd414]

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[DaBaiTuuu]

UI v2.11.4

[lidel]

I confirmed this with v2.12 and QmbWqxBEKC3P8tqsKc98xmWNzrzDtRLMiMPL8wBuTGsMns (changes last character from R to s making it "invalid"). The state is:

Let's continue in #1794 as it is the same use case.