Only date('format') filter in Summary String Transformations work. All others are broken.

[mimecine]

Describe the bug

The only filter that seems to work in the summary is the date one. All others are inert.

To Reproduce
summary = "{{ title | upper }} / {{ title | lower }} / {{ title | truncate(3) }} / {{ nonexistant | default('Hello') }} / {{mytruth | ternary('Yep','Nope') }} / {{today | date('yyyy') }}" yields
Title / Title / Title / / / 2024
Booleans don't display at all whether true or false (might be expected tho)

Expected behavior
TITLE / title / Tit / Hello / Yep / 2024

Applicable Versions:

• Decap CMS version: 4.3.0
• Git provider: Github
• OS: MacOS latest
• Browser version: Chrome latest

Additional context
Booleans don't display at all whether true or false (might be expected tho)

[mimecine]

With further investigation, I realize that it's a matter of spaces, but only if it's written like {{var | filter}} not as {{var | filter }} <- note the space at the end.

The ternary filter is sensitive about spacing before an argument.

Chaining filters doesn't work.