Unable to install linux-generic-hwe-18.04-edge on ARM64 in -proposed

[Po-Hsu Lin]

linux-image-5.0.0-8-generic is not available for ARM64.

# apt-get install --yes linux-generic-hwe-18.04-edge
 Reading package lists...
 Building dependency tree...
 Reading state information...
 Some packages could not be installed. This may mean that you have
 requested an impossible situation or if you are using the unstable
 distribution that some required packages have not yet been created
 or been moved out of Incoming.
 The following information may help to resolve the situation:

 The following packages have unmet dependencies:
  linux-generic-hwe-18.04-edge : Depends: linux-image-generic-hwe-18.04-edge (= 5.0.0.8.66) but it is not going to be installed
 E: Unable to correct problems, you have held broken packages.

More check on this:
# apt-get install linux-image-generic-hwe-18.04-edge
Reading package lists... Done
Building dependency tree
Reading state information... Done
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.
The following information may help to resolve the situation:

The following packages have unmet dependencies:
 linux-image-generic-hwe-18.04-edge : Depends: linux-image-5.0.0-8-generic but it is not installable
E: Unable to correct problems, you have held broken packages.

It works well with PowerPC / AMD64 / i386, just not ARM64