Installer cannot proceed if Sublime Text is selected, but ST4 is installed, not ST3.

[SpacePotatoBear]

• I was not able to find an open or closed issue matching what I'm seeing

Setup

x64

$ git --version --build-options

git version 2.31.1.windows.1
cpu: x86_64
built from commit: c5f0be26a7e3846e3b6268d1c6c4800d838c6bbb
sizeof-long: 4
sizeof-size_t: 8
shell-path: /bin/sh
feature: fsmonitor--daemon

Windows 10

$ cmd.exe /c ver

Microsoft Windows [Version 10.0.19042.1023]

• What options did you set as part of the installation? Or did you choose the
  defaults?

# One of the following:
> type "C:\Program Files\Git\etc\install-options.txt"
> type "C:\Program Files (x86)\Git\etc\install-options.txt"
> type "%USERPROFILE%\AppData\Local\Programs\Git\etc\install-options.txt"
$ cat /etc/install-options.txt

Editor Option: CustomEditor
Custom Editor Path: "C:\Program Files\Sublime Text\subl.exe" "-w"
Default Branch Option:  
Path Option: Cmd
Plink Path: C:\Program Files\PuTTY\plink.exe
SSH Option: Plink
Tortoise Option: false
CURL Option: OpenSSL
CRLF Option: CRLFAlways
Bash Terminal Option: MinTTY
Git Pull Behavior Option: Merge
Use Credential Manager: Core
Performance Tweaks FSCache: Enabled
Enable Symlinks: Disabled
Enable Pseudo Console Support: Disabled

• Any other interesting things about your environment that might be related
  to the issue you're seeing?

No.

Details

• Which terminal/shell are you running Git from? e.g Bash/CMD/PowerShell/other

git bash

• What commands did you run to trigger this issue? If you can provide a
  Minimal, Complete, and Verifiable example
  this will help us understand the issue.

• What did you expect to occur after running these commands?

select sublime text, be able to hit next and install

• What actually happened instead?

next greyed out, had to use a custom editor to work around it.

• If the problem was occurring with a specific repository, can you provide the
  URL to that repository to help us with testing?

[rimrul]

Yes. The installer expects sublime text sytem installs to be located in "C:\Program Files\Sublime Text 3". The fix should be fairly easy. I'll submit a PR later today.

[SpacePotatoBear]

Sorry not used to github's ui, Thanks @rimrul