Set Setpgid on child git processes (#19865) (#19881)

modules/git/blame.go

@@ -130,6 +130,7 @@ func createBlameReader(ctx context.Context, dir string, command ...string) (*Bla
 	cmd := exec.CommandContext(ctx, command[0], command[1:]...)
 	cmd.Dir = dir
 	cmd.Stderr = os.Stderr
+	process.SetSysProcAttribute(cmd)
 
 	stdout, err := cmd.StdoutPipe()
 	if err != nil {

modules/git/command.go

@@ -188,6 +188,7 @@ func (c *Command) RunWithContext(rc *RunContext) error {
 	if goVersionLessThan115 {
 		cmd.Env = append(cmd.Env, "GODEBUG=asyncpreemptoff=1")
 	}
+	process.SetSysProcAttribute(cmd)
 	cmd.Dir = rc.Dir
 	cmd.Stdout = rc.Stdout
 	cmd.Stderr = rc.Stderr