Hard fork request: re-enable some permission settings of TCNY

[abitmore]

Due to a GUI bug, some permissions/flags of TCNY are accidentally disabled and hard if not unable to enable again. This ticket is for re-enabling these permissions/flags, just set them to same as CNY.

Earlier discussion is here: https://bitsharestalk.org/index.php?topic=20870.0.

[abitmore]

Update: according to https://github.com/cryptonomex/graphene-ui/issues/737, the GUI bug has been fixed.

[pmconrad]

This is problematic, IMO. Issuer permissions define certain guarantees on what the issuer can or cannot do wrt an asset. Changing these guarantees requires the consent of all holders of the asset.

Apparently in this case what hurts most is the missing flag to allow witnesses to provide a price feed. A workaround exists (?), from which two conclusions follow:

1. the requested hardfork is not necessary, and
2. the requested hardfork, if limited to the the witness_fed_asset flag, does not change the effective guarantees on the asset and might therefore be seen as acceptable.

[theoreticalbts]

@pmconrad is absolutely correct. The idea of permissions is "These are the rules, and the blockchain won't allow the issuer to change the rules on you later."

A recent hardfork #572 allows assets with no float to change issuer permissions. So if you can destroy all the existing float of the asset, you can fix the problem.

[abitmore]

Let the asset holders decide, or let the core asset holders decide (voting)? Anyway it's caused by a GUI bug, so imo fixing it with a hard fork is acceptable.

It's a private smart coin, not a UIA, how to make it "no float"? Global settle?

[xeroc]

@abitmore global settlements are irreversible (another thing that needs to be discussed eventually). So, once globally settled, the asset is is practically unusable.

[vikramrajkumar]

This issue was moved to bitshares/bitshares-core#203