How can I reset the external merge tool settings ?

[Alex JULITA]

Hello, 

I try to give to sourcetree a custom exe as external mergetool.

I am using a python script converted to .exe with pyinstaller.

I have something like this (simplified version)

```py

parser=argparse.ArgumentParser(description='''Script for diff''')

parser.add_argument('--local', type=pathlib.Path, help='local file')

parser.add_argument('--remote', type=pathlib.Path, help='remote file')

parser.add_argument('--mergetool', type=pathlib.Path, help='Path to merge tool')

args=vars(parser.parse_args())

# default value

my_merge_tool = 'C:/Program Files/WinMerge/WinMergeU.exe'

if args[mergetool] != None:

    my_merge_tool = args[mergetool]

os.system(my_merge_tool + args[local] + " " + args[remote])

```

I then used the created executable as external tool with the args:

--local=\"$LOCAL\"  --remote=\"$REMOTE\"

After that, i tried to change mergetool several time like (not sure at which point it started to be broken):

--local=\"$LOCAL\"  --remote=\"$REMOTE\" --mergetool="C:\Program Files\TortoiseGit\bin\TortoiseGitMerge.exe"

--local=\"$LOCAL\"  --remote=\"$REMOTE\" --mergetool="C:/Program Files/TortoiseGit/bin/TortoiseGitMerge.exe"

--local=\"$LOCAL\"  --remote=\"$REMOTE\" --mergetool=\"C:\\Program Files\\TortoiseGit\\bin\\TortoiseGitMerge.exe\"

Now it's stucked and the log shows me that the value of mergetool is always equal to: C:/Program

The other values are changing, only mergetool is stuck. Even if i remove the arg from the arguments

I also can not change the name of the executable. I tried to rename it and it will still try to call with the previous name.

Deleting C:\Users\<MyUserName>\AppData\Local\Atlassian\SourceTree.exe_Url_apscwdyxqjugvtivtrh4tbcjapcnzggm\3.4.10.0\user.config or other files as shown here https://confluence.atlassian.com/sourcetreekb/how-to-wipe-sourcetree-preferences-412484640.html doesn't work either.

[Alex JULITA]

Is it possible that someone have a look about this please ?