RBM does not properly handle boolean expressions in config files

Relevant part of <project>/config:

  - filename: TestPackFromSerializationExceedsSizeLimit.patch
    enable: '[% c("var/linux-i686") %] || [% c("var/windows-i686") %]'

And for <project>/build

echo "**VAR OUTPUT**"
echo "var/linux-i686: " [% c("var/linux-i686") %]
echo "var/windows-i686: " [% c("var/windows-i686") %]
ls -al $rootdir
[% IF c("var/linux-i686") || c("var/windows-i686") -%]
    patch -p1 < $rootdir/TestPackFromSerializationExceedsSizeLimit.patch
[% END -%]

Expected behaviour is that:

1. The file TestPackFromSerializationExceedsSizeLimit.patch is only included on linux-i686 and windows-i686 targets

Actual behaviour is that:

1. The file is included on all targets (Incorrect behaviour)

In the build file, the boolean expression is properly handled, and the patch is only applied on relevant platforms

The log output (<project>-x86_64.log) shows the following:

+ echo '**VAR OUTPUT**'
**VAR OUTPUT**
+ echo 'var/linux-i686: '
var/linux-i686: 
+ echo 'var/windows-i686: '
var/windows-i686: 
+ ls -al /var/tmp/tmp.nbiNyZuPLS
total 1052172
drwx------ 2 rbm  rbm       4096 Dec  8 07:52 .
drwxrwxrwt 8 root root      4096 Dec  8 07:53 ..
-rw-rw-r-- 1 rbm  rbm        659 Dec  8 07:52 TestPackFromSerializationExceedsSizeLimit.patch
-rwx------ 1 rbm  rbm       2557 Dec  8 07:52 build
-rw-r--r-- 1 rbm  rbm   17890847 Dec  8 07:52 cmake-3.22.0-cfcc6f.tar.gz
-rw-r--r-- 1 rbm  rbm  562297199 Dec  8 07:52 container-image_buster-amd64-daf55294abba.tar.gz
-rw-r--r-- 1 rbm  rbm  460648080 Dec  8 07:52 gcc-10.2.0-1ce3c2.tar.gz
-rw-rw-r-- 1 rbm  rbm    6354076 Oct 28 21:07 protobuf-3.19.1.tar.gz
-rw-r--r-- 1 rbm  rbm   30199609 Dec  8 07:52 protoc-3.19.1-4e4f2e.tar.gz