[3pt] Lua object representing space remains broken after :drop() rollback

Product: Tarantool
Since: 2.8.2 ?
Root document: https://www.tarantool.io/en/doc/latest/reference/reference_lua/box_index/drop/, https://www.tarantool.io/en/doc/latest/reference/reference_lua/box_txn_management/rollback/
SME: @ Korablev77

Details

Subj (note that there's no mvcc mode; light ddl operations are allowed to be in casual txs):

box.cfg{}
s = box.schema.space.create('test')
_ = s:create_index('primary')

box.begin() s:drop() box.rollback()
s

tarantool> s
---
- engine: memtx
  before_replace: 'function: 0x406245a0'
  field_count: 0
  is_sync: false
  ck_constraint: []
  on_replace: 'function: 0x40624578'
  temporary: false
  index: []
  is_local: false
  enabled: false
  name: test
  id: 513
...

As one can see object s does not feature any indexes so it's not usable. Meanwhile box.space.test is absolutely OK:

tarantool> box.space.test
---
...
  index:
    0: &0
      unique: true
      parts:
...
  name: test
  id: 512
...

In case this behavior is not going to change I guess we should at least document it.

Start with the box_index/drop and box_txn_management/rollback reference pages, then reproduce the sequence using box.schema.space.create, space:drop, and box.rollback. Done means the post-rollback state of the Lua space object is clarified and either corrected or documented consistently with box.space.test.