No cursor after exiting vim

[polluks]

Windows Terminal version (or Windows build number)

1.8.1521.0

Other Software

vim 7.4.576 (via SSH inside WSL)

        linux-vdso.so.1 (0x00007ffffd7f6000)
        libm.so.6 => /lib/x86_64-linux-gnu/libm.so.6 (0x00007f151d9c1000)
        libtinfo.so.5 => /lib/x86_64-linux-gnu/libtinfo.so.5 (0x00007f151d797000)
        libselinux.so.1 => /lib/x86_64-linux-gnu/libselinux.so.1 (0x00007f151d572000)
        libacl.so.1 => /lib/x86_64-linux-gnu/libacl.so.1 (0x00007f151d369000)
        libgpm.so.2 => /usr/lib/x86_64-linux-gnu/libgpm.so.2 (0x00007f151d163000)
        libdl.so.2 => /lib/x86_64-linux-gnu/libdl.so.2 (0x00007f151cf5f000)
        libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007f151cbb4000)
        libpcre.so.3 => /lib/x86_64-linux-gnu/libpcre.so.3 (0x00007f151c946000)
        /lib64/ld-linux-x86-64.so.2 (0x00007f151e0ef000)
        libattr.so.1 => /lib/x86_64-linux-gnu/libattr.so.1 (0x00007f151c741000)
        libpthread.so.0 => /lib/x86_64-linux-gnu/libpthread.so.0 (0x00007f151c524000)

Steps to reproduce

A few times start vim, switch the window and wait...

Expected Behavior

Everytime a flashing cursor after switching back.

Actual Behavior

Sometimes the cursor disappears, reset(1) helps.

[DHowett]

Looks like vim never restores the cursor blink status. This "regressed" due to the fix for #10543. Terminal used to ignore the request for a non-blinking cursor. Now it respects it, but vim never turns blinking back on.

There may also be an issue where we let them turn off blinking while the cursor is off.