Parameters with underscores are not created

[Afanasevaa36]

CUBA Platform version: 7.2.19
CUBA Studio plugin version: 15.9-213
IntelliJ version: IntelliJ IDEA 2022.1 (Ultimate Edition)

Steps:

1. Create new project.
2. Add addon Email template.
3. Run project.
4. Login Admin.
5. Administration>Email templates.
6. Create> from designer.
7. In Body drag the "Text".
8. In the Text add ${bproc_UserGroup.id}
9. Go to "Parameters and Formats" and click "Create from template"

ER:
A new parameter will be created
AR:
A new parameter will not be created

This is because the CUBA does not support underlining

[knstvk]

@Afanasevaa36 - please test it on Jmix and create an issue there.