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Opened 5 years ago

Last modified 3 years ago

#47187 accepted defect (bug)

<!--more--> tag on same line as content prevents any edits to that line

Reported by: archon810's profile archon810 Owned by: sergeybiryukov's profile SergeyBiryukov
Milestone: Awaiting Review Priority: normal
Severity: normal Version: 5.2
Component: Editor Keywords: needs-testing
Focuses: Cc:



We have noticed a bug in WordPress that prevents any edits to the line with a <!--more--> tag if the tag is on the same line at the end, like so:

Test. <!--more-->


If you enter this into Text mode, then switch to Visual mode and move the cursor right after "Test." you won't be able to insert any characters.

I tested this on 5.1 and 5.2.

Attachments (2)

more-classical.jpg (26.7 KB) - added by birgire 5 years ago.
more-code.jpg (15.3 KB) - added by birgire 5 years ago.

Download all attachments as: .zip

Change History (16)

#1 @archon810
5 years ago


Any updates on triaging this ticket?

Our writers are complaining that the read more tag inserts on the same line all the time and prevents edits as described.


#2 @birgire
5 years ago

Thanks for the report @archon810

Are you using any plugins, like the Classical Editor, since you mentioned Visual & Text mode?

Are there any Javascript errors in the console?

I was unsuccessful replicating this in the classical editor, in WordPress 5.2 with the Classical Editor plugin activated.

#3 @archon810
5 years ago


We do have the Classic Editor plugin active. I can confirm no errors in the console.

Disabling plugins on a dockerized spin-up currently, let's see if it's any of them.

#4 @archon810
5 years ago

Hi again,

I've deactivated every plugin except for Classic Editor. I also switched our theme to twentynineteen.

I can still reproduce the issue (in Chrome stable 74 on Windows 10 at least). For example, I can't press "space" at the end of the line after "Wi-Fi settings.":

#5 @archon810
5 years ago

In fact, this is happening in the block editor too, with the Classic Editor disabled.

Here's a screencast demo - note that you only can't add spaces at the end there - other chars work OK.

@birgire I hope you can reproduce this now.

5 years ago

#6 @birgire
5 years ago

Thank you for the screencast and screenshots @archon810

It was helpful.

I can now confirm the error on my vanilla 5.2 install when I create a new post in the block editor, with the example in more-code.jpg

No Javascript error in console.

Space is not working just after "after" and right before "before" in more-classical.jpg

#7 @birgire
5 years ago


I wonder if you could verify another strange thing

  • Then I delete only the a character with the backspace button, so that the cursor is now at the beginning of the line (left).
  • Then I press the space button few times and it will act like the delete button on the spaces to the right, until it hits f without deleting it.
Last edited 5 years ago by birgire (previous) (diff)

#8 @archon810
5 years ago

@birgire I can confirm seeing the same thing. Nice spot - this bug is even weirder. Can we get someone to take a look at what's causing it?

#9 @pento
5 years ago

  • Keywords reporter-feedback added

I'm unable to reproduce this issue in trunk: are you able to reproduce it there?

#10 @archon810
5 years ago

@pento Just tested on github master ( is missing wp-includes/js and is all sorts of broken for me), and I can still reproduce this issue.

#11 @archon810
4 years ago

Any updates?

#13 @SergeyBiryukov
4 years ago

  • Owner set to SergeyBiryukov
  • Status changed from new to accepted

#14 @noisysocks
3 years ago

  • Keywords needs-testing added; reporter-feedback removed
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