An error message is displayed while trying to view 'blame'

Issue Summary

Upon viewing the 'blame' for one or more files in a repository can produce a warning in the UI with a message "An error occurred while executing an external process: null"

This is reproducible on Data Center: (yes)

Steps to Reproduce

1. Import a repository
2. Create a couple of commits in the repository
3. For one of the commits, add the commit message similar to '10 11 02200' (3 numbers, separated by a single space)
4. click on blame

Expected Results

The proper output for blame is displayed.

Actual Results

A dialog box apprears with error "An error occurred while executing an external process: null"

The below exception is thrown in the atlassian-bitbucket.log file, once debug logging is enabled.

2022-04-29 16:04:50,746 DEBUG [http-nio-7990-exec-6] username @1FY8PZSx964x12296927x2 1xbbwxk 192.168.1.1,0:0:0:0:0:0:0:1 "GET /rest/api/latest/projects/PRJ/repos/REP/browse/sample/test.yaml HTTP/1.1" c.a.b.i.p.nu.NioNuProcessHandler 23387: Dropping [/bin/git blame --incremental -L 1,+1535 refs/heads/production -- sample/test.yaml] callback invocation (Canceled: false; Timed out: false)
java.lang.NumberFormatException: null
at java.lang.Long.parseLong(Unknown Source)
at java.lang.Long.parseLong(Unknown Source)

Workaround

Currently there is no known workaround for this behavior. A workaround will be added here when available