Problems reading tar contents - cannot open files or wrong content shown

Small description Nested archives, e.g., a tar inside a tar, or a .csv.gz inside a tar.gz cannot be opened.

Data to reproduce n/a see below

Steps to reproduce

1. Cannot open csv.gz inside a tar

printf 'a,b,c\n1,2,3\n' | gzip > data.csv.gz
tar cf outside.tar data.csv.gz
vd outside.tar

Now press enter to open data.csv.gz inside outside.tar and it shows binary garbage.

1. Cannot open tar inside tar:

printf 'a,b,c\n1,2,3\n' | gzip > data.csv.gz
tar cf inside.tar data.csv.gz
tar cf outside.tar inside.tar
rm data.csv.gz inside.tar
vd outside.tar

Now press enter to open inside.tar inside outside.tar and it shows a blank sheet.

1. Show wrong content inside tar

printf 'a,b,c\n1,2,3\n' | gzip > data.csv.gz
tar cf inside.tar data.csv.gz
tar cf outside.tar inside.tar

printf 'DECOY,DECOY\n9,9\n' | gzip > decoy.csv.gz
tar cf inside.tar decoy.csv.gz
rm data.csv.gz decoy.csv.gz

vd outside.tar

Now press enter to open the inside.tar from inside the outside.tar. It shows its content as decoy.csv.gz while it should have shown data.csv.gz.

Expected result Explained above

Actual result with screenshot Explained above.

Configuration

• Does this issue reproduce without any plugins or configuration (using the -N CLI flag)? -> YES

• Does this issue reproduce with either the latest release, or with the develop branch? -> YES

Additional context

• What platform and version are you using (Linux, MacOS, Windows)? -> Linux

• Which version of Python? -> 3.14.4

• Which terminal are you using (for display and input issues)? - n/a