Reproduction devshell services issues

This repo is a minimal reproduction

example:start

When example:start finishes, the process seems to exit, but the pidfile remains:

21:31:47 system | ruby.1 started (pid=2113)
21:31:47 ruby.1 | main fn
21:31:47 system | ruby.1 stopped (rc=0)

To start the service again, we have to call example:stop and then example:start

debug:start

When debug:start reaches the debugger statement, the ruby process is stopped. I would expect this to allow me to use the debug tool. The pidfile also remains in this example.

21:33:08 system | ruby.1 started (pid=2273)
21:33:08 ruby.1 | Before debug
21:33:08 ruby.1 | [1, 10] in example_debug.rb
21:33:08 ruby.1 |      1| require 'debug'
21:33:08 ruby.1 |      2| 
21:33:08 ruby.1 |      3| def main
21:33:08 ruby.1 |      4|   puts "Before debug"
21:33:08 ruby.1 | =>   5|   debugger
21:33:08 ruby.1 |      6|   puts "After debug"
21:33:08 ruby.1 |      7|   exit(0)
21:33:08 ruby.1 |      8| end
21:33:08 ruby.1 |      9| 
21:33:08 ruby.1 |     10| main
21:33:08 ruby.1 | =>#0  Object#main at example_debug.rb:5
21:33:08 ruby.1 |   #1  <main> at example_debug.rb:10
21:33:08 ruby.1 | (rdbg) Really quit? [Y/n] 
21:33:08 system | ruby.1 stopped (rc=0)