Select modifier conflicts with nav tag's select param

[jacksleight]

Bug description

Since upgrading to 5.6.0 I'm seeing this error coming from the CoreModifiers::select() method:

method_exists(): Argument #1 ($object_or_class) must be of type object|string, int given

The site isn't using the select modifier, but I've tracked the issue down to usage of the select param in the nav tag:

{{ nav:main select="title|url" }}

If I remove that param it works. It seems to be interpreting the param as a modifier.

How to reproduce

Try to use the nav tag with the select param.

Logs

No response

Environment

Statamic
Addons: 10
Sites: 1
Stache Watcher: Disabled
Static Caching: Disabled
Version: 5.6.0 PRO

Statamic Addons
duncanmcclean/guest-entries: 4.0.1
duncanmcclean/simple-commerce: 7.2.0
jacksleight/statamic-bard-texstyle: 3.2.2
jonassiewertsen/statamic-livewire: 3.3.1
statamic-rad-pack/runway: 7.1.0
stillat/relationships: 2.2.0
studio1902/statamic-peak-browser-appearance: 3.4.1
studio1902/statamic-peak-commands: 3.2.0
studio1902/statamic-peak-seo: 7.5.0
studio1902/statamic-peak-tools: 4.4.2

Installation

Fresh statamic/statamic site via CLI

Additional details

No response

[lukeagsmith]

I've just bumped into this too.

[robdekort]

Same. Critical issue.

[duncanmcclean]

Likely related to the introduction of the select modifier in #10183. In the meantime, downgrading to v5.5.0 should fix the issue.

[robdekort]

Likely related to the introduction of the select modifier in #10183. In the meantime, downgrading to v5.5.0 should fix the issue.

It does. Bit surprised though this passed through all the tests.

[duncanmcclean]

Looking into it now.

[robdekort]

❤️

[robdekort]

Full stack trace can be found here: #10215