$ git clone -n https://src.fedoraproject.org/rpms/gnome-shell-extension-blur-my-shell.git /var/lib/mock/f45-build-11482-432/root/chroot_tmpdir/scmroot/gnome-shell-extension-blur-my-shell
Cloning into '/var/lib/mock/f45-build-11482-432/root/chroot_tmpdir/scmroot/gnome-shell-extension-blur-my-shell'...
$ git fetch origin a6fc32931988c03980568baaf7887d832231adc4:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/gnome-shell-extension-blur-my-shell
 * [new ref]         a6fc32931988c03980568baaf7887d832231adc4 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a6fc329 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild