bug: crashed while performing `rover subgraph fetch`

[mlcooper]

Description

My commands that crashed:
ENV=nonprd rover subgraph fetch --name ipa-graphdb foo@"$ENV" --output ipa-graphdb-fetched-current.graphql
ENV=nonprd rover subgraph fetch --name ipa-graphdb foo@$ENV --output ipa-graphdb-fetched-current.graphql

My command that did NOT crash:
rover subgraph fetch --name ipa-graphdb foo@nonprd --output ipa-graphdb-fetched-current.graphql

Crash Report

name = "rover"
operating_system = "unix:Ubuntu"
crate_version = "0.37.0"
explanation = """
Panic occurred in file 'src/error/metadata/mod.rs' at line 252
"""
cause = "internal error: entered unreachable code: Graph ref parse errors should be caught via clap"
method = "Panic"
backtrace = """

   0: 0x6461476436d5 - <rover::error::metadata::RoverErrorMetadata as core::convert::From<&mut anyhow::Error>>::from::h04bf7e386b916f83
   1: 0x6461474d7275 - rover::error::RoverError::new::h810351d9e1e488d7
   2: 0x646147292cd5 - rover::command::subgraph::Subgraph::run::{{closure}}::hd8c075d7de500a35
   3: 0x64614722a7fd - rover::cli::Rover::execute_command::{{closure}}::hbf9cc8b868fa69cb
   4: 0x6461472a4ed2 - tokio::runtime::park::CachedParkThread::block_on::h1d2bc90d3b36d669
   5: 0x6461473c61e3 - tokio::runtime::context::runtime::enter_runtime::h193eece728ed34bd
   6: 0x646147337dd8 - tokio::runtime::runtime::Runtime::block_on::haf6a5d435e79a709
   7: 0x6461474ad931 - rover::main::hd9bf9db45ae93dbe
   8: 0x6461473a9c53 - std::sys::backtrace::__rust_begin_short_backtrace::h667841ee6b9ce2c6
   9: 0x646147472b19 - std::rt::lang_start::{{closure}}::ha61ebe8bdf492dd3
  10: 0x646147fab500 - std::rt::lang_start_internal::h6ba36b077a531782
  11: 0x6461474b4595 - main
  12: 0x76f1eb82a1ca - __libc_start_call_main
                at ./csu/../sysdeps/nptl/libc_start_call_main.h:58
  13: 0x76f1eb82a28b - __libc_start_main_impl
                at ./csu/../csu/libc-start.c:360
  14: 0x646146f6b5a9 - <unresolved>
  15:        0x0 - <unresolved>"""