Newlines when pasting have strange effects.

This is most noticeable and reproducable in nano.

Steps to reproduce with nano:
Put this into a file:

This
Is
A
Test

Copy the file contents to the clipboard:

cat file | termux-clipboard-set

Open that same file in nano -w, put the cursor to the beginning, long press, paste.

ThisThis Is A Test Is A
Test

Should be:

This
Is
A
Test
This
Is
A
Test

or similar. The same version of nano on iTerm2 has no issue, so it is likely a Termux issue.

cat also has this issue:
Manually:

$ cat
This
This
Is
Is
A
A
Test
Test^D
$

With clipboard:

$ cat
This
Is
A
TestThis
Is
A^D
Test^D$

Upon the first ^D, Test is shown, and then the second finishes the cat without an ending newline.