"merged rule with conflicting x modifiers" with alias that has a glob on right-hand side

Current Debian unstable, apparmor 2.9.2-3, linux-image-4.0.0-1-amd64 4.0.2-1.

This profile loads just fine:

alias / -> /lib/live/mount/rootfs/bla.squashfs/,
profile whatever {
  /usr/{,local/}lib*/{,**/}* Pixr,
  /usr/lib/chromium-browser/chrome-sandbox PUxr,
}

But trying to load this one (with apparmor_parser -K -r):

alias / -> /lib/live/mount/rootfs/*.squashfs/,
profile whatever {
  /usr/{,local/}lib*/{,**/}* Pixr,
  /usr/lib/chromium-browser/chrome-sandbox PUxr,
}

... results in:

profile has merged rule with conflicting x modifiers
ERROR processing regexs for profile whatever, failed to load

Note that both profiles load fine with AppArmor 2.8 + jjohansen experimental aliases improvements patch.