SD strips CFBundleTypeIconFile when saving app

AppleScript
#1

SD is removing CFBundleTypeIconFile from my Info.plist when the app is edited/saved in SD7 or SD8

I created an app (droplet really) in SD, then manually edited the Info.plist to add a CFBundleDocumentTypes array:

...
    <key>CFBundleDocumentTypes</key>
    <array>
        <dict>
            <key>CFBundleTypeExtensions</key>
            <array>
                <string>eurl</string>
            </array>
            <key>CFBundleTypeRole</key>
            <string>Viewer</string>
            <key>CFBundleTypeIconFile</key>
            <string>EURL.icns</string>
        </dict>
    </array>
...

This works as expected and I can see .eurl files show the CFBundleTypeIconFile icon. However, if I re-open/edit/save the .app in SD, the CFBundleTypeIconFile tag is removed:

...
    <key>CFBundleDocumentTypes</key>
    <array>
        <dict>
            <key>CFBundleTypeExtensions</key>
            <array>
                <string>eurl</string>
            </array>
            <key>CFBundleTypeRole</key>
            <string>Viewer</string>
        </dict>
    </array>
...

Here’s a demonstration file: DemoBug in SD7.zip - Droplr

It contains a DemoBug.app AppleScript app with the CFBundleTypeIconFile intact, along with a TestFile.eurl (which should show the icon).

#2

Unfortunately this is a limitation resulting from the simplified UI we provide for controlling what extensions are allowed. I’ll log a request to see if we can find some workaround. At this stage, however, I’m bound to say I can’t see any relatively simple fix.