$ git clone -n https://src.fedoraproject.org/rpms/signon-glib.git /var/lib/mock/f42-build-3408542-45145/root/chroot_tmpdir/scmroot/signon-glib
Cloning into '/var/lib/mock/f42-build-3408542-45145/root/chroot_tmpdir/scmroot/signon-glib'...
$ git fetch origin c59397a7f005abe18e0220c981e10e7b69eceb05:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/signon-glib
 * [new ref]         c59397a7f005abe18e0220c981e10e7b69eceb05 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c59397a Rebuilt for https://fedoraproject.org/wiki/Fedora_42_Mass_Rebuild