$ git clone -n https://src.fedoraproject.org/rpms/trelby.git /var/lib/mock/f42-build-3301801-41426/root/chroot_tmpdir/scmroot/trelby
Cloning into '/var/lib/mock/f42-build-3301801-41426/root/chroot_tmpdir/scmroot/trelby'...
$ git fetch origin a03bac847839244d8301cebfeb5e7119d93f9201:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/trelby
 * [new ref]         a03bac847839244d8301cebfeb5e7119d93f9201 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a03bac8 Rebuilt for https://fedoraproject.org/wiki/Fedora_42_Mass_Rebuild