abuild doesn't trace depends of subpackages if main package has arch=noarch

Minimal example

To illustrate the issue (untested):

pkgname=test
arch="noarch"
subpackages="test-subpkg:subpkg:x86_64"

subpkg() {
	make DEST="$pkgdir" install
}

abuild should not trace the depends of test, but it should trace the depends of test-subpkg.

Real example

APKBUILD:

# Maintainer: Oliver Smith <ollieparanoid@postmarketos.org>
pkgname=calamares-extensions
pkgver=1.0.0
pkgrel=0
arch="noarch !armhf" # blocked by qt5-qtdeclarative
url="https://github.com/calamares/calamares-extensions"
pkgdesc="Calamares Branding and Module Examples"
license="GPL-3.0-or-later"
makedepends="
	calamares-dev
	qt5-qtsvg-dev
	qt5-qtdeclarative-dev
	"
source="https://github.com/calamares/calamares-extensions/releases/download/v$pkgver/calamares-extensions-$pkgver.tar.gz"
options="!check" # has no tests

# Modules and brandings to build:
# https://github.com/calamares/calamares-extensions/tree/calamares/modules
# https://github.com/calamares/calamares-extensions/tree/calamares/branding
_modules="
	mobile
	"
_brandings="
	default-mobile
	"

for i in $_modules; do
	subpackages="$pkgname-mod-$i:_module:$CARCH $subpackages"
done
for i in $_brandings; do
	subpackages="$pkgname-brand-$i:_branding $subpackages"
done

# Check if one module/branding is enabled
# $1: name of module/branding
# $2: either $_modules or $_brandings
is_enabled() {
	local i
	for i in $2; do
		[ "$i" = "$1" ] && return 0
	done
	return 1
}

# Check if string $1 is in CMakeLists.txt and comment it out
comment_out() {
	sed -i "s~$1~#&~g" "$builddir/CMakeLists.txt"
}

prepare() {
	default_prepare

	local i

	msg "disabled modules:"
	cd "$builddir/modules"
	for i in *; do
		if ! [ -d "$i" ] || is_enabled "$i" "$_modules"; then
			continue
		fi
		echo " - $i"
		comment_out "calamares_add_module_subdirectory( modules/$i "
	done

	msg "disabled brandings:"
	cd "$builddir/branding"
	for i in *; do
		if ! [ -d "$i" ] || is_enabled "$i" "$_brandings"; then
			continue
		fi
		echo " - $i"
		comment_out "calamares_add_branding_subdirectory( branding/$i "
	done
}

build() {
	cmake -B build \
		-DCMAKE_BUILD_TYPE=None \
		-DCMAKE_INSTALL_PREFIX=/usr \
		-DCMAKE_INSTALL_LIBDIR=lib
	cmake --build build
}

_module() {
	local module=${subpkgname##calamares-extensions-mod-}
	local path="usr/lib/calamares/modules"

	mkdir -p "$subpkgdir/$path"
	mv "$pkgdir/$path/$module" "$subpkgdir/$path/$module"
}

_branding() {
	local branding=${subpkgname##calamares-extensions-brand-}
	local path="usr/share/calamares/branding"

	mkdir -p "$subpkgdir/$path"
	mv "$pkgdir/$path/$branding" "$subpkgdir/$path/$branding"
}

package() {
	DESTDIR="$pkgdir" cmake --install build
}

sha512sums="46801342c14ad8e744378c90bcea8a60bff805096b39958b4856fef3c855b60be4d8507643e101700c52c1605db3ce1c872170a3ea79e59ef123cda0fdfe0a01  calamares-extensions-1.0.0.tar.gz"

Does not trace dependencies here (full log):

>>> calamares-extensions-mod-mobile*: Tracing dependencies...
>>> calamares-extensions-mod-mobile*: Package size: 116.0 KB
>>> calamares-extensions-mod-mobile*: Compressing data...
>>> calamares-extensions-mod-mobile*: Create checksum...
>>> calamares-extensions-mod-mobile*: Create calamares-extensions-mod-mobile-1.0.0-r0.apk

After changing arch to all in the main package and removing $CARCH from the subpackage:

>>> calamares-extensions-mod-mobile*: Tracing dependencies...
	so:libKF5CoreAddons.so.5
	so:libQt5Core.so.5
	so:libc.musl-x86_64.so.1
	so:libcalamares.so.3.2.35.1
	so:libgcc_s.so.1
	so:libstdc++.so.6
>>> calamares-extensions-mod-mobile*: Package size: 116.0 KB
>>> calamares-extensions-mod-mobile*: Compressing data...
>>> calamares-extensions-mod-mobile*: Create checksum...
>>> calamares-extensions-mod-mobile*: Create calamares-extensions-mod-mobile-1.0.0-r1.apk

APKBUILD diff:

diff --git a/main/calamares-extensions/APKBUILD b/main/calamares-extensions/APKBUILD
index bff9de2f7..9186a9497 100644
--- a/main/calamares-extensions/APKBUILD
+++ b/main/calamares-extensions/APKBUILD
@@ -1,8 +1,8 @@
 # Maintainer: Oliver Smith <ollieparanoid@postmarketos.org>
 pkgname=calamares-extensions
 pkgver=1.0.0
-pkgrel=0
-arch="noarch !armhf" # blocked by qt5-qtdeclarative
+pkgrel=1
+arch="all !armhf" # blocked by qt5-qtdeclarative
 url="https://github.com/calamares/calamares-extensions"
 pkgdesc="Calamares Branding and Module Examples"
 license="GPL-3.0-or-later"
@@ -25,7 +25,7 @@ _brandings="
 	"
 
 for i in $_modules; do
-	subpackages="$pkgname-mod-$i:_module:$CARCH $subpackages"
+	subpackages="$pkgname-mod-$i:_module $subpackages"
 done
 for i in $_brandings; do
 	subpackages="$pkgname-brand-$i:_branding $subpackages"