'packer -autocomplete-install' breaks filename completion

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#### Overview of the Issue

Running

```
packer -autocomplete-install
```

works to add `packer ` completion such as the `build` command, but breaks the more useful filename autocompletion in bash on Mac (using both stock `3.2.57(1)-release` and newer brew installed Bash `5.2.15(1)-release` - with the same result)

#### Reproduction Steps

```
git clone https://github.com/HariSekhon/Packer-templates pack

cd pack

packer build ubuntu-arm64.qemu

# works to fill in the rest of the filename

```

```

packer -autocomplete-install

bash -login # to get the .bash_profile injected complete command to run

packer bui # now works to autocomplete the 'build' command

# but

packer build ubuntu-arm64.qemu # no longer autocompletes the filename

```

Workaround - remove packer autocompletion:
```
complete -r packer

packer build ubuntu-arm64.qemu # now works again
```

Permanently remove this broken autocompletion:
```
rm -fv /usr/local/etc/bash_completion.d/packer
rm -fv /opt/homebrew/etc/bash_completion.d/packer
gsed -i '/^complete.*packer packer$/d' ~/.bash_profile
```

### Packer version

```
packer version
Packer v1.9.1
```

### Operating system and Environment details

`Mac M1 running macOS Ventura 13.4`
&
`Mac Intel running macOS Big Sur 11.7`

using both Bash `3.2.57(1)-release` and `5.2.15(1)-release`