Problem upgrading postgis25_11 on Fedora 29

I have PostgreSQL v10 and v11 installed, both with PostGIS.

Upgrading PostGIT for version 10 to postgis25_10-2.5.2-2.f29.x86_64
worked fine, but upgrading PostGIS for v11 failed:

> sudo dnf --refresh --repo=pgdg11 -y upgrade postgis25_11

enabling pgdg11-debuginfo repository
PostgreSQL 11 29 - x86_64 39 kB/s | 3.8 kB 00:00
PostgreSQL 11 29 - x86_64 - Debuginfo 3.7 kB/s | 345 B 00:00
Failed to synchronize cache for repo 'pgdg11-debuginfo'
Ignoring repositories: pgdg11-debuginfo
Dependencies resolved.
============================================================================================================================================
Package Architecture Version Repository Size
============================================================================================================================================
Upgrading:
postgis25_11 x86_64 2.5.2-2.f29 pgdg11 5.7 M

Transaction Summary
============================================================================================================================================
Upgrade 1 Package

Total download size: 5.7 M
Downloading Packages:
postgis25_11-2.5.2-2.f29.x86_64.rpm 4.6 MB/s | 5.7 MB 00:01
--------------------------------------------------------------------------------------------------------------------------------------------
Total 4.5 MB/s | 5.7 MB 00:01
Running transaction check
Transaction check succeeded.
Running transaction test
The downloaded packages were saved in cache until the next successful transaction.
You can remove cached packages by executing 'dnf clean packages'.
Error: Transaction check error:
file /usr/lib/.build-id/7d/3063974d2f3d5f8e83f4c9038242418b06727e from install of postgis25_11-2.5.2-2.f29.x86_64 conflicts with file from package postgis25_10-2.5.2-2.f29.x86_64

Did I do anything wrong, or is that a packaging problem?

Yours,
Laurenz Albe