Space in IM type field breaks export

[hoyalu]

Checklist

• I can reproduce the bug with the latest version given here.
• I tried to make sure that there are no existing issues - open or closed - to which I could contribute my information.
• I tried to make 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

1.6.0

Affected Android/Custom ROM version

Android 16 / GrapheneOS 2026012101

Affected device model

Pixel 8

How did you install the app?

F-Droid / IzzyOnDroid

Steps to reproduce the bug

1. Add a new contact. No need to give it a name, but it makes it easier to find it afterwards.
2. Enter anything in the IM field. As its type (or whatever it's called; the one on the right, defaults to "Skype") chose Custom and enter any value containing a space like "a b".
3. Save the contact.
4. Try to share this contact or to export all contacts.

Expected behavior

Sharing and export works.

Actual behavior

A popup appears: "Error: java.lang.IlleglaArgumentException: java.net.URI…"
When trying to share, the choice of apps to share with doesn't appear. When trying to export, a 0-byte file gets written.

Screenshots/Screen recordings

No response

Additional information

No response