Tab behavior in plain text is disrupted by markdown rules

When selected as a plain text, not markdown in the per note options, a tab character precepts as an indent for the entire line if a - (hyphen) is at the start of the line. Any subsequent use of tab on the same line only adds another indent to the line rather than where it is located on the line.

This behavior is inconsistent with plain text rules and rather commonly that of markdown.

Windows Version: 11 24H2
Simplenote Version: 2.23.2.

Reproduce the behavior in Simplenote 2.23.2 with a plain-text note containing a hyphenated line and multiple tab presses. Start by tracing the Android note editor's tab and line-indentation handling; done means tabs are inserted at their cursor positions in plain text rather than indenting the entire line.

Written by the indexing model from the issue text.