$ git clone -n https://src.fedoraproject.org/rpms/tinyproxy.git /var/lib/mock/f42-build-3279840-41338/root/chroot_tmpdir/scmroot/tinyproxy
Cloning into '/var/lib/mock/f42-build-3279840-41338/root/chroot_tmpdir/scmroot/tinyproxy'...
$ git fetch origin 0309c6971cfd7b2658f9654f5309771da5776ba4:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/tinyproxy
 * [new ref]         0309c6971cfd7b2658f9654f5309771da5776ba4 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 0309c69 Rebuilt for https://fedoraproject.org/wiki/Fedora_42_Mass_Rebuild