CBOR validation not works

hi,

i try to validate my CBOR stream using cbor_value_validate_basic.

i always get error with the first signature tag (even if the stream is ok)
`D9D9F7A300A300196BCF010002C11A3843138001A100F502A100A300F401F93C0002F94D00`

the decoded form is:
```
d9 d9f7 # self describe cbor, tag(55799)
a3 # map(3)
00 # unsigned(0)
a3 # map(3)
00 # unsigned(0)
19 6bcf # unsigned(27,599)
01 # unsigned(1)
00 # unsigned(0)
02 # unsigned(2)
c1 # epoch datetime value, tag(1)
1a 38431380 # unsigned(943,920,000)
# datetime(1999-11-30T00:00:00Z)
01 # unsigned(1)
a1 # map(1)
00 # unsigned(0)
f5 # true, simple(21)
02 # unsigned(2)
a1 # map(1)
00 # unsigned(0)
a3 # map(3)
00 # unsigned(0)
f4 # false, simple(20)
01 # unsigned(1)
f9 3c00 # float(1)
02 # unsigned(2)
f9 4d00 # float(20)
```

if i skip the signature tag before calling cbor_value_validate_basic and introduce a bad map definition (2 declared and 3 items)
`D9D9F7A300**A2**00196BCF010002C11A3843138001A100F502A100A300F401F93C0002F94D00`
The function returns no error.

using [https://cbor.nemo157.com/](url), the stream problem is identified.
`Error: TODO cbor-diag::Error: Remaining bytes (02a100a300f401f93c0002f94d00)`

I have not identified in the lib where can be the problem except after returning, the remaining field is not 0.