Further whitespace problems with jsx-curly-brace-presence

[taion]

From #2427 (comment), #2427 (comment).

The following autofixes are incorrect:

--- a/www/src/examples/Navbar/Brand.js
+++ b/www/src/examples/Navbar/Brand.js
@@ -28,7 +28,7 @@
         height="30"
         className="d-inline-block align-top"
       />
-      {' React Bootstrap'}
+      React Bootstrap
     </Navbar.Brand>
   </Navbar>
 </>;

-            <React.Fragment key={idx}>
-              {' / '}
-              {crumb}
-            </React.Fragment>
+            <React.Fragment key={idx}>/{crumb}</React.Fragment>

[taion]

Also #2434 (comment).

[SirCameron]

Are there any updates on this? seems to be an issue for some time now already.

[benjie]

Here's another reproduction:

<h1><span>Hello</span>{" & "}<span>goodbye</span></h1>

Gets autofixed to:

            <h1>
              <span>Hello</span>
               & 
              <span>goodbye</span>
            </h1>

which drops the spaces around the ampersand. Also the ampersand ought to be escaped.

[ryansully]

To expand @benjie's comment, if the ampersand remains within braces due to leading/trailing whitespace, then it shouldn't need to be escaped. However, if braces are removed because there is only the ampersand and no whitespace, then the autofix should escape it.

[golopot]

This should be fixed by #2448.