sharing dialog not showing recievers after having done a lookup and closing the sidepanel

[TheACF]

Steps to reproduce

Go to Share
2.
Type in the Field and wait for browsing the user directory
3.
Delete the letters you typed
4.
leave the menu with close
5.
Enter the sharing menue for the same folder again
6.
Try again to type and wait for browsing directory

Expected behaviour

Tell us what should happen
Some users from the directory should be listed

Actual behaviour

Tell us what happens instead
In the second try - nothing happends...no user is listed and it seems that loading from userdirectory not happening
After Page Reload it is working again.

Server configuration

Operating system:
Ubuntu 16.04
Web server:
Apache
Database:
MySQl
PHP version:
7.0
Nextcloud version: (see Nextcloud admin page)
14.0.3
Updated from an older Nextcloud/ownCloud or fresh install:
14.0.1 (the error was already on this version after upgrade from latest 13.)
Where did you install Nextcloud from:

Signing status:

Signing status

Login as admin user into your Nextcloud and access 
http://example.com/index.php/settings/integrity/failed 
paste the results here.

List of activated apps:

App list

If you have access to your command line run e.g.:
sudo -u www-data php occ app:list
from within your Nextcloud installation folder

Nextcloud configuration:

Config report

If you have access to your command line run e.g.:
sudo -u www-data php occ config:list system
from within your Nextcloud installation folder

or 

Insert your config.php content here. 
Make sure to remove all sensitive content such as passwords. (e.g. database password, passwordsalt, secret, smtp password, …)

Are you using external storage, if yes which one: local/smb/sftp/...

Are you using encryption: yes/no

Are you using an external user-backend, if yes which one: LDAP/ActiveDirectory/Webdav/...

LDAP configuration (delete this part if not used)

LDAP config

With access to your command line run e.g.:
sudo -u www-data php occ ldap:show-config
from within your Nextcloud installation folder

Without access to your command line download the data/owncloud.db to your local
computer or access your SQL server remotely and run the select query:
SELECT * FROM `oc_appconfig` WHERE `appid` = 'user_ldap';


Eventually replace sensitive data as the name/IP-address of your LDAP server or groups.

Client configuration

Browser:

Operating system:

Logs

Web server error log

Web server error log

Insert your webserver log here

Nextcloud log (data/nextcloud.log)

Nextcloud log

Insert your Nextcloud log here

Browser log

Browser log

Insert your browser log here, this could for example include:

a) The javascript console log
b) The network log
c) ...

[nextcloud-bot]

GitMate.io thinks possibly related issues are #2658 (Sharing and permissions), #4455 (Share thumbnails together with the shared folder), #2852 (Shared from information inconsistent ), #2679 (Share permissions misbehaving), and #1963 (Improve user share suggestions).

[violoncelloCH]

reproduced
related to #10774 ?

[MorrisJobke]

Seems to be related to #10934

[skjnldsv]

Fixed with #15719