Occupied capacity incorrect/unintuitive on cell.

[jordanmack]

Describe the bug

When I look at the "declared" and "occupied" amounts, either they do not intuitively make sense to me, or the amounts are incorrect.

I assume "declared" to mean the total amount of CKB within the cell. I would suggest using the more standard term of "capacity" here. If it has some other meaning I am unclear on it. It says 145 CKBytes which seems to indicate the capacity.

I assume "occupied" is the amount of data actually used by the data within the cell. It says 128 CKBytes, which does not seem to add up as I would expect.

To Reproduce

1. Go to https://explorer.nervos.org/transaction/0x20826a6762a40a9bda477c84464999ba5e1e7c4ca29c2659c3c5c065fd5b33a9
2. Click on Cell Info for Output 1.
3. Click on Capacity Usage.

Expected behavior
Here is the lock script, type script, and data:

Lock Script
{
    "code_hash": "0xd00c84f0ec8fd441c38bc3f87a371f547190f2fcff88e642bc5bf54b9e318323",
    "args": "0x00017170e87d1b34d166745b7274e0105a3fe7100a04",
    "hash_type": "type"
}

In the lock script the code_hash is 32 bytes, args is 22 bytes, hash_type is 1 byte. This is 55 bytes total.

Type Script
{
    "code_hash": "0x50bd8d6680b8b9cf98b73f3c08faf8b2a21914311954118ad6609be6e78a1b95",
    "args": "0x8a0d5884ef2b7bf7e6c06c32482015b4eb0985f9cc4112c12a20ca36716066c6",
    "hash_type": "data1"
}

In the type script the code_hash is 32 bytes, args is 32 bytes, hash_type is 1 byte. This is 65 bytes total.

Data
{
    "data": "0x00ca9a3b000000000000000000000000"
}

The data is 16 bytes total.

The capacity field of the cell is 8 bytes total.

Field	Occupied
Lock Script	55 bytes
Type Script	65 bytes
Data	16 bytes
Capacity	8 bytes
Total	144 bytes

This does not match the "occupied" capacity of "128 CKBytes".

Screenshots

[Keith-CY]

@Danie0918 @Sven-TBD please check this issue

[Danie0918]

This was found to be a bug after troubleshooting by @zmcNotafraid :

For transactions with 'Pending' status, occupied is not counted in the size of data.