Blockquote shortcut strips space before formatted text

[Clorith]

When using the shortcut for blockquotes in the editor, >, spacing before any formatted text in the quote will be stripped out.

However, if you, for example, spell out the line with underlines and use the blockquote button in the kitchen sink, this does not happen.

Reproduce:
In a post, type the following > This is a <Ctrl+U>underlined<Ctrl+U> quote

Expected outcome:

This is an underlined quote

Actual outcome:

This is anunderlined quote

The same happens to bold, italic, strikethrough and colors.

You can also use the toolbar buttons to apply the formatting of bold, italics etc. The primary factor is that the blockquote shortcut is used.

[johnstonphilip]

Just seconding this. I tested this and can confirm the same thing happens for me. When using the Blockquote shortcode and then underlining text in a quote, it removes any spaces you have before the underlined text.

[azaozz]

In 36513:

TinyMCE: fix removing a space before inline tags when applying formatting shortcuts.

Fixes #35798.