Additional underscore characters at the end of melismas from pasted lyrics (MuseScore 3)

Reproducing issue:
Copy and Paste a text including two underscores at the end of a Melisma in a score
for example: text with me-lis-ma__ in it

Expected behavior:
Melisma has only one underline with fitted length at the end

Actual behavior:
Melisma has two underscore characters and one underline with fitted length at the end

MuseScore 2 works well

Workaround:
Replace underscores manually

OS: Windows 8.1 (6.3), Arch.: x86_64, MuseScore version (64-bit): 3.3.2.8849, revision: 492d7ef