Alphanumeric SMS are not restored from a backup

[smed79]

Checklist

• I can reproduce the bug with the latest version given here.
• I made sure that there are no existing issues - open or closed - to which I could contribute my information.
• I made sure that there are no existing discussions - open or closed - to which I could contribute my information.
• I have read the FAQs inside the app (Menu -> About -> FAQs) and my problem isn't listed.
• I have taken the time to fill in all the required details. I understand that the bug report will be dismissed otherwise.
• This issue contains only one bug.
• I have read and understood the contribution guidelines.

Affected app version

1.1.3

Affected Android/Custom ROM version

No response

Affected device model

No response

How did you install the app?

F-Droid / IzzyOnDroid

Steps to reproduce the bug

Creat a backup blocked numbers txt file with the below entries

01234,ABC,56789,DEF

1. go to settings
2. manage blocked numbers
3. import blocked numbers

Expected behavior

restore the below blocked alphanumeric and numbers

01234
56789
ABC
DEF

Actual behavior

The app restore the blocked numbers

01234
56789

The app doesn't restore Alphanumeric blocked entries

ABC
DEF

Screenshots/Screen recordings

No response

Additional information

No response