[Fixed] Save button disappears after sumission error in Admin tree long-click edit modal

[LMD]

[Edit:  this issue was fixed in PW  3.0.40]

I've recently noticed a small bug, but my Google-fu didn't find any mention of it anywhere else:

When using the long-click modal window to edit a page from the Admin page tree, if there is a field submission error (e.g., a required field is missing/incorrectly formatted etc), the "Save" button completely disappears, preventing the page from being saved at all.

I think it is a javascript issue because it only happens when fields are validated with the HTML5 required attribute (in the field settings the "also use HTML5 'required' attribute" option is checked).  HTML5 validation halts browser submission, but I suspect the javascript is still submitting the form (but sadly, not saving it!), hence the button vanishing.

It's not really a big issue, you can just not use the long-click edit modal (or not use HTML5 validation, but I like the convenience of it), but I thought it ought to be mentioned. Not really sure what the solution is either.

I've observed this in: PW version 3.0.39 dev (was using ver. 3.0.34 where I first noticed the problem, I updated specifically to see if it already been fixed).

Browsers tested: Firefox and Chrome - both have the same issue.

Edited November 8, 2016 by LMD
Issue was fixed in an update.

[szabesz]

Hi, 

With such a detailed description, you might want to create a github issue here:

https://github.com/processwire/processwire-issues/issues

[LMD]

@szabesz Good idea.  I don't actually have a GitHub account, but I really ought to and now seems as good a time as any.