$ git clone -n https://src.fedoraproject.org/rpms/mingw-glibmm24.git /var/lib/mock/f45-build-18455-516/root/chroot_tmpdir/scmroot/mingw-glibmm24
Cloning into '/var/lib/mock/f45-build-18455-516/root/chroot_tmpdir/scmroot/mingw-glibmm24'...
$ git fetch origin 96d522f634224e5cc8328cceeb60d610fb50138f:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/mingw-glibmm24
 * [new ref]         96d522f634224e5cc8328cceeb60d610fb50138f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 96d522f Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild