$ git clone -n https://src.fedoraproject.org/rpms/sjinn.git /var/lib/mock/f42-build-889358-188914/root/chroot_tmpdir/scmroot/sjinn
Cloning into '/var/lib/mock/f42-build-889358-188914/root/chroot_tmpdir/scmroot/sjinn'...
$ git fetch origin 2568a6fcaf1a15c691363496a7d921c051ed2ee1:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/sjinn
 * [new ref]         2568a6fcaf1a15c691363496a7d921c051ed2ee1 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 2568a6f Rebuilt for https://fedoraproject.org/wiki/Fedora_42_Mass_Rebuild