$ git clone -n https://src.fedoraproject.org/rpms/perl-Mouse.git /var/lib/mock/f39-build-2376148-60428/root/chroot_tmpdir/scmroot/perl-Mouse
Cloning into '/var/lib/mock/f39-build-2376148-60428/root/chroot_tmpdir/scmroot/perl-Mouse'...
$ git fetch origin 8ee9dad189650839b0c924d7102fd53c6cf82ae3:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Mouse
 * [new ref]         8ee9dad189650839b0c924d7102fd53c6cf82ae3 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8ee9dad Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild