$ git clone -n https://src.fedoraproject.org/rpms/pipewire.git /var/lib/mock/f45-build-28543-631/root/chroot_tmpdir/scmroot/pipewire
Cloning into '/var/lib/mock/f45-build-28543-631/root/chroot_tmpdir/scmroot/pipewire'...
$ git fetch origin af1c6d1397f6237ac8c760795debef2950afce4d:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/pipewire
 * [new ref]         af1c6d1397f6237ac8c760795debef2950afce4d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at af1c6d1 Update version to 1.6.9