$ git clone -n https://src.fedoraproject.org/rpms/calamares.git /var/lib/mock/f42-build-861901-170476/root/chroot_tmpdir/scmroot/calamares
Cloning into '/var/lib/mock/f42-build-861901-170476/root/chroot_tmpdir/scmroot/calamares'...
$ git fetch origin 2c00a4810d54ef8b994d892f0d6c5b15dc345aa6:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/calamares
 * [new ref]         2c00a4810d54ef8b994d892f0d6c5b15dc345aa6 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 2c00a48 Rebuild for ICU 76