$ git clone -n https://src.fedoraproject.org/rpms/qt5-qtdeclarative.git /var/lib/mock/f45-build-34006-676/root/chroot_tmpdir/scmroot/qt5-qtdeclarative
Cloning into '/var/lib/mock/f45-build-34006-676/root/chroot_tmpdir/scmroot/qt5-qtdeclarative'...
$ git fetch origin 45fec5c5778d6ae2da8c6c5db4bd0596daf8c7fe:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/qt5-qtdeclarative
 * [new ref]         45fec5c5778d6ae2da8c6c5db4bd0596daf8c7fe -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 45fec5c Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild