$ git clone -n https://src.fedoraproject.org/rpms/soundconverter.git /var/lib/mock/f45-build-36254-702/root/chroot_tmpdir/scmroot/soundconverter
Cloning into '/var/lib/mock/f45-build-36254-702/root/chroot_tmpdir/scmroot/soundconverter'...
$ git fetch origin 03c6ef18e65315383d673eccd759bf5bd3d3b469:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/soundconverter
 * [new ref]         03c6ef18e65315383d673eccd759bf5bd3d3b469 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 03c6ef1 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild