Sumatra opens the same file multiple times

[julie777]

SumatraPDF version

• Version [e.g. 3.5.2, pre-release]
• 3.3.3 64 bit Windows

Describe the bug
If I close Sumatra with multiple files open, and then open a group of files containing those files then I end up with multiple tabs for the same file.
This does not happen if only one file is open when closing sumatra and it does not happen when opening an overlapping set that is not a superset.

To Reproduce
Steps to reproduce the behavior:

1. open 2 files from File Explorer
   
2. close sumatra (I am using <esc>)
3. select a group of files (superset) in file explorer
   
4. hit <enter>
   
5. the same files are open in multiple tabs

Expected behavior
A clear and concise description of what you expected to happen.
Duplicate tabs for the same file should not be opened, especially not in the semi random way that it currently works.

File that reproduces the problem
If this is related to a specific PDF etc. file, please attach the file.

Screenshots
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Additional context
Add any other context about the problem here.

[GitHubRulesOK]

SumatraPDF does not get the files in a rational order from Explorer, You can select different ways and SumatraPDF get them "Semi-Randomly"

If you pick in reverse Explorer usually works like a "stack"

It also depends on setting

ReloadModifiedDocuments = true
RememberOpenedFiles = true
RememberStatePerDocument = false
RestoreSession = true
ReuseInstance = true

So "reuse" will be respected by the command line (where needed for editors) however if you drag and drop via windows explorer then a different method leads to a second copy, same as if double clicked after a restore!