Comment 47 for bug 943881

Caolán McNamara committed a patch related to this issue.
It has been pushed to "master":

https://git.libreoffice.org/core/+/931b63db1ce15b309eb6f879f1da992986bf974d%5E%21

Related: tdf#53029 escape backslash in username for 'domain\username'

It will be available in 6.4.0.

The patch should be included in the daily builds available at
https://dev-builds.libreoffice.org/daily/ in the next 24-48 hours. More
information about daily builds can be found at:
https://wiki.documentfoundation.org/Testing_Daily_Builds

Affected users are encouraged to test the fix and report feedback.