yq doesn't preserve previous document settings when parsing multiple YAML 1.1 documents in the same stream

[normanr]

Describe the bug
It looks like Tag Shorthands are not preserved when processing multiple documents when the subsequent documents do not have any directives. If I repeat the directives for subsequent documents (or expand Tag Shorthands into Verbatim Tags), then yq parses the stream correctly.

Version of yq: 4.16.2
Operating system: linux
Installed via: git clone & dpkg-buildpackage

Input Yaml
This doesn't work
data1.yml:

%YAML 1.1
%TAG !e! tag:example.com:
--- !e!1
Thing:
  foo: 1
--- !e!2
Widget:
  bar: 2

but this does:
data2.yml:

%YAML 1.1
%TAG !e! tag:example.com:
--- !e!1
Thing:
  foo: 1
%TAG !e! tag:example.com:
--- !e!2
Widget:
  bar: 2

and so does this:

%YAML 1.1
--- !<tag:example.com:1>
Thing:
  foo: 1
--- !<tag:example.com:2>
Widget:
  bar: 2

Command
The command you ran:

yq eval data1.yml
yq eval-all data1.yml

Actual behavior

eval:

%YAML 1.1
!<tag:example.com:1>
Thing:
  foo: 1
Error: bad file 'data1.yaml': yaml: line 4: found undefined tag handle

eval-all:

Error: bad file 'data1.yaml': yaml: line 4: found undefined tag handle

Expected behavior

%YAML 1.1
!<tag:example.com:1>
Thing:
  foo: 1
---
!<tag:example.com:2>
Widget:
  bar: 2

Additional context
This seems to be a supported feature of YAML 1.1: "If the document specifies no directives, it is parsed using the same settings as the previous document.", but YAML 1.2 says: "Each document is completely independent from the rest.". It would be nice if the old 1.1 fallback was supported if possible.