$ git clone -n https://src.fedoraproject.org/rpms/kf5-kcalendarcore.git /var/lib/mock/f31-build-113893-34421/root/chroot_tmpdir/scmroot/kf5-kcalendarcore
Cloning into '/var/lib/mock/f31-build-113893-34421/root/chroot_tmpdir/scmroot/kf5-kcalendarcore'...
$ git reset --hard d84c63f50c5a1e2cbc21c84c1e12b50066e3aec3
HEAD is now at d84c63f - Rebuilt for https://fedoraproject.org/wiki/Fedora_31_Mass_Rebuild