$ git clone -n https://github.com/xcp-ng-rpms/libdrm.git /var/lib/mock/v8.3-base-3843-3794/root/chroot_tmpdir/scmroot/libdrm
Cloning into '/var/lib/mock/v8.3-base-3843-3794/root/chroot_tmpdir/scmroot/libdrm'...
$ git reset --hard f13bacd39a7b54503401fff4321855edda2ddd07
Downloading SOURCES/libdrm-2.4.83.tar.gz (515 KB)
HEAD is now at f13bacd Rebuild after first kernel build for 8.3