$ git clone -n https://src.fedoraproject.org/rpms/arm-none-eabi-newlib.git /var/lib/mock/f42-build-3364908-45045/root/chroot_tmpdir/scmroot/arm-none-eabi-newlib
Cloning into '/var/lib/mock/f42-build-3364908-45045/root/chroot_tmpdir/scmroot/arm-none-eabi-newlib'...
$ git fetch origin 7b40be3453701045787bbec4da66ce8618251cb8:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/arm-none-eabi-newlib
 * [new ref]         7b40be3453701045787bbec4da66ce8618251cb8 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7b40be3 Rebuilt for https://fedoraproject.org/wiki/Fedora_42_Mass_Rebuild